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Duchess Kate’s royal style

Catherine, Duchess of Cambridge, wears everything from fancy hats to casual tank tops. See how Prince William's wife can easily go from a high society affair to shopping on the streets of London.

The Duchess of Cambridge wears everything from fancy hats to casual jeans. See how the fashions of Prince William's wife easily take her from a high society affair to shopping on the streets of London.

Catherine the Duchess of Cambridge and Prince William, Duke of Cambridge visit The Stephen Lawrence Center in Deptford to tour the facility and meet Charitable Trust members, in London on March 27, 2015. Kate, who is due to give birth late next month, looked radiant in a fuschia-pink Mulberry coat. Hannah Mckay / EPA
Catherine, Duchess of Cambridge visits the Brookhill Children's Center in Woolwich on March 18, 2015 in London. She wore a polka dot dress by Asos Maternity.. WPA Pool via Getty Images
Catherine, Duchess of Cambridge presents Shamrocks to soldiers of the Irish Guards as she attends the annual St. Patrick's Day Parade at Mons Barracks on March 17, 2015 in Aldershot, England. She looked lovely in head-to-toe brown, wearing a coat by Catherine Walker, Lock & Co hat and brown suede Emmy heels Getty Images
Britain's Catherine, Duchess of Cambridge, and her husband Prince William leave St Paul's Cathedral in London on March 13, 2015, after attending a memorial service to mark the end of Britain's combat operations in Afghanistan. Dressed all in navy, the Duchess wore a Chiara Wool coat from Beulah London, and kept her hair simple in a bun. Ben Stansall / AFP - Getty Images
Britain's Catherine, Duchess of Cambridge chats to actresses Sophie McShera, left, and Lesley Nicol during a visit to the set of Downton Abbey at Ealing Studios, west London, on March 12, 2015. The Duchess dressed her bump in a cream Jojo Maman Bebe coat, and wore black heels with her hair down. Pool via Reuters
Britain's Catherine, Duchess of Cambridge, waves after visiting an art gallery in Margate, southern England on March 11, 2015. The 33-year-old, who is nearly eight months pregnant, wrapped up in a Dalmatian print coat by Hobbs for the visit to the windy seaside resort of Margate, Kent. Suzanne Plunkett / AFP - Getty Images
Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge leave the Observance for Commonwealth Day Service at Westminster Abbey on March 9, 2015 in London. Arriving with Prince William, the 8-month pregnant Duchess wore pink a Alexander McQueen coat with her hair pulled back in a half-up style. Chris Jackson / Getty Images
Britain's Catherine, Duchess of Cambridge, speaks with children during a visit of the charity Action for Childrens Cape Hill Childrens Center in Smethwick, England on February 18, 2015. She wore a blue floral Seraphine dress. Eddie Mulholland / AFP - Getty Images
Duchess Kate attends an event hosted by The Fostering Network to celebrate the work of foster carers in providing support to vulnerable young people on January 16, 2015 in London. Kate, who is 6 months pregnant, dark-chocolate shirt dress with a faint animal-print silk jacquard, by Hobbs London, which is not part of a maternity line, with opaque black tights and court shoes. Chris Jackson / Getty Images
Catherine, Duchess of Cambridge leaves the Barlby Primary School after officially naming The Clore Art Room on January 15, 2015 in London. The pregnant royal showed a hint of baby bump in a navy Madderson London shift dress made with Hainsworth fabric. Neil Mockford/alex Huckle / Getty Images
Prince William and Duchess Kate leave the Christmas Day Service at Sandringham Church on December 25, 2014 in King's Lynn, England. The duchess chose a brown tweed, double-breasted coat for the occasion, and paired it with a matching chocolate brown hat and shoes. Even more exciting was the ever-so-slight Christmas debut of her emerging baby bump. Chris Jackson / Getty Images
Britain's Catherine, Duchess of Cambridge, arrives to attend a meeting of the newly established 23rd Poplar Beaver Scout Colony in east London December 16, 2014. She wore a Scout hoodie and matching black jeans and boots. Reuters
Prince William, Duchess Kate and LeBron James pose after the Cleveland Cavaliers vs. Brooklyn Nets game at Barclays Center in Brooklyn, New York, on December 8, 2014. Kate sports a tweed Tory Burch coat and J. Crew jeans for the event. Neilson Barnard / Pool via EPA
Duchess Kate greets a child after a visit to the Northside Center for Child Development in Harlem on December 8 in New York City. She chose a black 'cocoon' coat by Goat with mod white piping for the visit. Kena Betancur / AFP - Getty Images
Prince William and Duchess Kate arrive at The Carlyle Hotel, where they are staying during their official three-day visit to the U.S. on December 7. Kate donned a royal hue in a purple coat by maternity brand Seraphine. We spot a baby bump! Neilson Barnard / Pool via Getty Images
Kate attends the East Anglias Children's Hospices Norfolk Capital Appeal launch in Norwich, England on November 25, 2014. Paul Rogers / AFP - Getty Images
Duchess Kate attends the Place2be Wellbeing in Schools Awards reception at Kensington Palace on November 19 in London. Kate, four months pregnant with her second child, wears an elegant, sheer black Hobbs top, a Jenny Packham blue skirt and Temple of Heaven drop earrings. Paul Hackett / AP
Duchess Kate meets the members of One Direction at the Royal Variety Performance at the Palladium Theatre in London on November 13, 2014. The duchess wears a stunning floor-length Diane von Furstenberg lace gown with her hair in a simple up-do, and - at 16 weeks pregnant - shows a hint of a baby bump. Yui Mok / AP
Kate speaks with wheelchair athlete Sheikh Sheikh during her visit to a SportsAid workshop at the GlaxoSmithKline Human Performance Laboratory in west London on November 12, 2014. She wore a plum dress by Goat with opaque black tights and knee-high black boots. Reuters
The Duchess of Cambridge watchesthe Remembrance Sunday ceremony at the Cenotaph on Whitehall in London on November 9, 2014. The duchess wore an Alexander McQueen flared wool coa and a hat by Jane Corbett that she also wore to Remembrance Sunday events in 2011. Justin Tallis / AFP - Getty Images
The Duchess arrives to attend an Autumn Gala evening in support of Action on Addiction, in London on October 23, 2014. Kate wore Temperley London's emblem flare dress. Justin Tallis / AFP - Getty Images
Prince William and Duchess Kate are seen as they welcome the President of Singapore Tony Tan Keng Yam (not seen) at the Royal Garden Hotel on October 21, 2014 in London. She wore a gray Alexander McQueen coat dress and a Jane Taylor hat for her first engagement since announcing her second pregnancy in August. Chris Jackson / Getty Images
Duchess Kate attends the Wildlife Photographer of the Year 2014 awards ceremony at the Natural History Museum in London on October 21, 2014. Kate wore a pale blue, floor-length Jenny Packham dress. Pool via Reuters
Prince Harry, Duchess Kate and Prince William pause while visiting a dramatic installation of red ceramic poppies commemorating the 100th anniversary of World War I at the Tower of London on Aug. 5, 2014. Kate wore a subdued blue dress and was seen wiping away a tear as she made her way through the grounds. Oli Scarff / Getty Images
Duchess Kate maintains a somber tone in a crisp, off-white dress and hat while walking past World War I gravestones on Aug. 4, 2014. This photo was captured as she arrived for a commemoration ceremony to mark the 100th anniversary of the outbreak of World War I at the St. Symphorien cemetery in Belgium. Chris Jackson / AP
The Duchess of Cambridge sports a flattering blue skirt while playing the South African game Three Tins during a visit to the Commonwealth Games Village in Glasgow, Scotland on July 29, 2014. Danny Lawson / Pa Wire / EPA
Prince William and Duchess Kate arrive at the SSE Hydro arena in Glasgow, Scotland during the 20th Commonwealth Games on July 28, 2014. Kate's attire looked simultaneously casual and professional. Chris Jackson / Getty Images
Duchess Kate wears a brightly colored dress while visiting an M-PACT Plus Counselling program for families affected by addiction at Blessed Sacrament School in London on July 1, 2014. She paired the vibrant dress with a simple pair of nude pumps. Mark Cuthbert / Getty Images Contributor
Duchess Kate wears a sophisticated Alexander McQueen outfit during an official visit to Bletchley Park on June 18, 2014 in Bletchley, England. Danny E. Martindale / Getty Images
Duchess Kate, clad in a light blue Christopher Kane coat, stands with the Countess of Wessex as they watch Queen Elizabeth II lead the Knights of the Garter to the Most Noble Order of the Garter Ceremony from the Galilee Porch on June 16, 2014 in Windsor, England. Wpa Pool / Getty Images
Duchess Kate recycled a lace Alexander McQueen dress for a garden party at Buckingham Palace in London on June 10, 2014. John Stillwell / AFP/Getty Images
Duchess Kate, in a spring white style, met supporters of a bid to launch a British Team for the America's Cup, at the National Maritime Museum in London June 10, 2014. Luke Macgregor / Reuters
Prince William and Duchess Kate attend a remembrance ceremony, in Arromanches, France, on June 6, 2014, as part of the commemoration of the 70 anniversary of the D-Day landing. Remy De La Mauviniere / AP
Duchess Kate wears a Jonathan Saunders coat while visiting the Strathearn Community Campus in Crieff, U.K., on May 29. Mark Cuthbert / Getty Images
Prince William and Duchess Kate tour the Australian War Memorial on ANZAC Day on April 25, 2014 in Canberra, Australia. Pool / Getty Images
Prince William and Duchess Kate, wearing a white cocktail dress by Lela Rose, stand together as they attend a reception hosted by Governor General Peter Cosgrove and Lady Cosgrove at Government House in Canberra April 24, 2014. Pool / Reuters
Prince William and Duchess Kate, in an emerald green coatdress by Catherine Walker, visit the National Arboretum in Canberra, Australia on April 24, 2014. Chris Jackson / Getty Images
Duchess Kate wears an Alexander McQueen coat while walking with The Most Reverend Glenn Davies, Archbishop of Sydney, right, following an Easter Sunday service at St. Andrews Cathedral in Sydney on April 20. Pool via AP; Getty Images
Duchess Kate arrives in a yellow lace dress to observe a Bird Show at Taronga Zoo on April 20 in Sydney, Australia. Ryan Pierse / Getty Images
Duchess Kate, in a floral print dress by LK Bennett, arrives at the Royal Australian Airforce Base at Amberley on April 19 in Brisbane, Australia. Chris Jackson / Getty Images
Prince William and Duchess Kate, in a bright yellow dress, greet crowds outside Sydney Opera House in Sydney on April 16, 2014. Rick Rycroft / AP
Kate, in a red skirt suit by Italian designer Luisa Spagnoli, visits Christchurch City Council Buildings on April 14, 2014 in Christchurch, New Zealand. Chris Jackson / Getty Images
Prince William and Duchess Kate are accompanied by the Dean of St Paul's Cathedral after attending a Palm Sunday service at St Paul's Anglican Cathedral in Dunedin, New Zealand on April 13, 2014. Gerard O'brien / Pool / EPA
Kate enjoys some sports at the Forstyth Barr Stadium in Dunedin, New Zealand on April 13, 2014. Chris Jackson / Getty Images
Kate attends an art unveiling ceremony at a state reception in Wellington, New Zealand on April 10, 2014. Hagen Hopkins / AFP - Getty Images
The duchess wears a coat dress by one of her favorite designers, Alexander McQueen, while at the Omaka Aviation Heritage Centre in Seymour Square near Blenheim, in New Zealand on April 10, 2014. Reuters; Getty Images
Kate, in a Tory Burch dress, holds Prince George during a Plunket nurse and parents group visit in Wellington, New Zealand, on April 9, 2014. Plunket is a not-for-profit organization that provides care for children and families. Marty Melville / Pool via EPA
Kate and Prince George arrive at New Zealand's Wellington Military Terminal on April 7, 2014. Chris Jackson / Getty Images
Prince William, Prince Harry and Kate attend the wedding of Lucy Meade and Charlie Budgett at the church of St. Mary the Virgin, Marshfield on March 29, 2014 in Chippenham, England. Max Mumby / Getty Images
Catherine, Duchess of Cambridge presents a Shamrock to Domhnall (The Irish Wolf Hound Regimental Mascot) as she attends the St Patrick's Day Parade at Mons Barracks on March 17, 2014 in Aldershot, England. Max Mumby / Getty Images
Duchess Kate, in a red Alexander McQueen dress, meets performers during the Dramatic Arts reception at Buckingham Palace on Feb. 17, 2014 in London, England. Wpa Pool / Getty Images
Duchess Kate gets a start on spring in a bright blue sheath dress while attending the opening of the ICAP Art Room at Northolt High School on Feb. 14, 2014 in Ealing, England. Mark Cuthbert / Getty Images Contributor
On Feb. 11, Duchess Kate stepped out wearing the Nizam of Hyderabad, a diamond necklace Queen Elizabeth II received as a wedding gift for her marriage to the Duke of Edinburgh in 1947. Kate wore the dazzling necklace to a fund-raising gala for the National Portrait Gallery in London. Pool / Reuters
Duchess Kate, wearing a tartan McQ by Alexander McQueen coat dress, arrives for the Christmas Day service at Sandringham on Dec. 25, 2013 in King's Lynn, England. Chris Jackson / Getty Images
Duchess Kate and Prince William attend a screening of David Attenborough's Natural History Museum Alive 3D on Dec. 11 in London. Mark Cuthbert / Getty Images
Duchess Kate and Prince William attend the London premiere of 'Mandela: Long Walk to Freedom' on December 5, 2013. The relatable royal recycled a Roland Mouret gown she wore last summer, and paired it with an affordable necklace from Zara. Chris Jackson / Getty Images
Kate, 31, is glimpsed wearing a tiara as she leaves Kensington Palace for a diplomatic reception at Buckingham Palace on Dec. 3, 2013. It was the royal's first time publicly wearing a tiara since the royal wedding on Apr. 29, 2011. Splash News, AP
Duchess Kate, in an Alice Temperley dress, attends the annual SportsAid dinner at Victoria Embankment Gardens on Nov. 28, 2013 in London. Mark Cuthbert / Getty Images Contributor
Duchess Kate smiles as she leaves the Only Connect and ex-offenders projects on Nov. 19, 2013, in London. Chris Jackson / Getty Images
Kate, wearing a Temperley London coat, attends the annual Remembrance Sunday Service at the Cenotaph on Nov. 10, 2013, in London. Max Mumby / Getty Images
Prince William and Duchess Kate, sporting a bright red L.K. Bennett coat, prepare to meet staff and volunteers from the Royal British Legions London Poppy Day Appeal at Kensington Palace on Nov. 7, 2013. Carl Court / AFP - Getty Images
Duchess Kate wears a Jenny Packham dress while attending a gala dinner in aid of Action on Addiction in London on Oct. 24, 2013. Ian West / Pool via Reuters
Duchess Kate carries her son Prince George after his christening at St. James's Palace in London on Oct. 23, 2013. She wore an Alexander McQueen dress and Jane Taylor fascinator. John Stillwell / Pool via Reuters
Duchess Kate waves as she leaves after a visit to a SportsAid Athlete Workshop at the Queen Elizabeth Olympic Park in London, on Oct. 18, 2013. The duchess viewed young athletes taking part in a number of sports activities. Kirsty Wigglesworth / AP
Prince William and Duchess Kate arrive to attend the inaugural Tusk Conservation Awards at The Royal Society in London on Sept. 12, 2013. Peter Nicholls / AFP - Getty Images
Duchess Kate and Prince William arrive at Breakwater Country Park for the start of the Ring O' Fire Anglesey Coastal Ultra Marathon on August 30, 2013. This was Kate's first public appearance since the birth of Prince George. Paul Lewis / The Daily Mail / Pa / EPA
With husband Prince William by her side, Duchess Kate, wearing a Jenny Packham dress, revealed her newborn son to the world on July 23, 2013, at St. Mary's hospital in London. Rick Findler / EPA
Prince Harry, Duchess Kate and Prince William raise their wands on the set used to depict Diagon Alley in the "Harry Potter" films at Warner Bros. Studios on April 26, 2013, in London, England. Chris Jackson / Getty Images
Britain's Catherine, Duchess of Cambridge arrives at the National Fishing Heritage Centre in Grimsby, England on March 5, 2013. Toby Melville / Reuters
Kate, wearing a Lock & Company pillbox hat, attends the wedding of Laura Bechtolsheimer and Mark Tomlinson on March 2, 2013 in Arosa, Switzerland. Indigo / Getty Images Contributor
Duchess Kate leaves Hope House charity in south London on February 19, 2013. The Duchess visited Hope House, an all-female rehabilitation center which is is one of the projects run by her patronage, Action on Addiction. Mary Turner / AFP - Getty Images
Prince William and Duchess Kate leave King Edward VII hospital where Kate was being treated for acute morning sickness on Dec. 6 in London, England. Indigo / Getty Images Contributor
Kate visited St. Andrew’s, the school she attended from 1986-1995, and paid homage to the academy’s signature tartan and forest green in a plaid coatdress by McQ, a brand from the late Alexander McQueen, in Berkshire, England, on Nov. 30. Arthur Edwards / AFP - Getty Images
Kate recycled a bright green Mulberry dress for a visit to officially open the new Treasures Gallery at the Natural History Museum in central London on Nov. 27. Dominic Lipinski / AFP - Getty Images
Kate wore a cream-colored coat by MaxMara Studio while meeting members of the public during a visit to Manor School in Cambridge, England on Nov. 28. Chris Jackson / Pool via Reuters
Kate recycles a lace Alice Temperley gown while attending a gala dinner in aid of the University of St. Andrews 600th Anniversary Campaign at Middle Temple Hall on Nov. 8 in London, England. Getty Images
The Duchess of Cambridge smiles as she talks to Olympic and Paralympic athletes during a reception for Team GB Medallists at the 2012 London Olympic and Paralympic Games at Buckingham Palace in London on October 23. John Stillwell / AFP - Getty Images
Duchess Kate, wearing a chic oxblood-colored suit by French brand Paule Ka, poses with Prince William at Middle Temple on Oct. 8 in London. The royal couple met recipients of the Queen Mother Scholarship, the Diana, Princess of Wales Scholarship and the Duke and Duchess of Cambridge Scholarships. Chris Jackson / Getty Images
Duchess Kate is not above wearing the same outfit twice, especially when it's as stunning as this blue silk Erdem Moralioglu dress. On left, she wears it during the annual Trooping the Colour Ceremony at Buckingham Palace on June 16, 2012; on right, she returns to it for the wedding of Thierry Kelaart and Patrick Heathcoat-Amory on Sept. 29, 2012. Getty Images, Rex USA
Duchess Kate dances with the ladies at the Vaiku Falekaupule on Sept. 18, 2012, in Tuvalu, during the Diamond Jubilee tour on which she and Prince William represented the queen. Pool via Getty Images
Kate wears a necklace given to her as she visits the Solomon Islands on Sept. 17, 2012. Pool via Getty Images
Duchess Kate arrives in Marau on on day 7 of the Diamond Jubilee Tour, Sept. 17, 2012, in Marau, Guadacanal Province, Solomon Islands. Pool via Getty Images
Kate poses in traditional Island clothing during a visit to the Governor General's House in Honiara, Guadalcanal Island, on Sept. 16, 2012. Chris Jackson / Getty Images
Kate arrives in Honiara, Guadalcanal Island, on day 6 of the royal couple's Diamond Jubilee tour of the Far East on Sept. 16, 2012. Chris Jackson / Getty Images
Britain's Prince William and Catherine, Duchess of Cambridge, wave farewell before leaving Lahad Datu airport on the island of Borneo on Sept. 15, 2012. pool via Reuters
Kate wears a Temperley London dress as she departs with Prince William from the Kuala Lumpur airport on Sept. 14 during the royal couple's Diamond Jubilee Tour of the Far East. Arhtur Edwards / Pool via Getty Images
Kate channels the late Princess Diana in a headscarf and Beulah London dress on her visit to the Assyakirin Mosque on Sept. 14 in Kuala Lumpur, Malaysia. Chris Jackson / Getty Images
The Duchess attends an official dinner hosted by Malaysia's Head of State Sultan Abdul Halim Mu'adzam Shah of Kedah on Sept. 13. The gold-and-white gown was designed by Alexander McQueen and has the national flower of Malaysia, the hibiscus, embroidered on it. Mark Large / Pool via Getty Images
Kate visits Kranji Commonwealth War Cemetery in a pale blue dress by Jenny Packham on Sept. 13. Chris Jackson / Getty Images
The royal couple arrives at a British Gala reception in Singapore on September 12. Kate dons a dress by Erdem, a Canadian designer the royal has worn before. Nicolas Asfouri / AP
In a silk frock by Asian brand Raoul, the royal fashionista tours Queenstown, Singapore with Prince William in Sept. 2012. Chris Jackson / Getty Images
The royal couple tours the Cloud Forest at Gardens by the Bay in Singapore on Sept. 12. Kate wore a flirty skirt suit by Alexander McQueen — the second time she’s worn an outfit by the designer on the Diamond Jubilee Tour of the Far East. Wong Maye-E / Pool via Reuters
Duchess Kate looks radiant in the Prabal Gurung dress she wore to meet with Singapore’s President Tony Tan on Sept. 11. Getty Images
The Duchess wore a nautical-inspired Emilio Pucci blazer and pencil skirt to the medal ceremony for the Men’s Discus Throw at the London 2012 Paralympic Games in Sept. 2012. She paired the outfit with wedges by Stuart Weitzman and a Team Great Britain paralympic scarf. Stefan Rousseau / Pool via Getty Images
Kate keeps it casual at the London 2012 Paralympic Games in an Adidas polo with matching red sneakers on August 30. Stefan Rousseau / Pool via Getty Images
The Duchess attends the women’s hockey bronze medal match at the London 2012 Olympic Games in August 2012. Pascal Le Segretain / Getty Images
Kate wears a striped shirt and navy blazer to the London 2012 Olympic Games on July 31. Pascal Le Segretain / Getty Images
All-glammed up in a pale frock by Serbian-born designer Roksanda Illincic, the fashionista attends the UK Creative Industries reception in London on July 30. Geoff Pugh / Pool via Reuters
Kate poses during a reception at Buckingham Palace for the Olympics opening ceremony in London, England on July 27. Pool / Getty Images
Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge visit Bacon's College on July 26 in London, England. Getty Images
Duchess Kate dresses down in jeans and $500 wellies to watch her husband, Prince William play in a polo match on June 17. Getty Images
Kate, wearing a dress by one of her favorite designers, Erdem Moralioglu, watches the annual Trooping the Colour parade with her step mother in-law Camilla, Duchess of Cornwall, from the balcony at Buckingham Palace on June 16. Getty Images
Kate attends the wedding of friends on June 9, wearing a Jenny Packham dress that she wore during her tour of North America in the summer of 2011. Getty Images
Prince William, Kate (wearing Alexander McQueen), and Prince Harry watch a military fly-over from the Buckingham Palace balcony for the queen's Diamond Jubilee in London on June 5. Stefan Wermuth / AFP - Getty Images
Prince William Kate prepare to board the Spirit of Chartwell during the Diamond Jubilee pageant on the River Thames on June 3. For the celebration, Kate wore Alexander McQueen. David Crump / Pa Wire / Pool / EPA
Duchess Kate wears a crepe-wool coat dress designed by Emilia Wickstead, which clocks in at almost $1,900. She wore this to Queen Elizabeth II's Sovereign Monarchs Jubilee lunch at Windsor Castle on May 18, 2012, an event held to celebrate the Diamond Jubilee. Arthur Edwards / AFP- Getty Images
Prince William and Duchess Kate, wearing a teal Jenny Packham gown, attend the "Our Greatest Team Rises -BOA Olympic Concert" at the Royal Albert Hall on May 11 in London, England. Alastair Grant / WPA pool via Getty Images
Prince William and Duchess Kate arrive for a dinner hosted by The Thirty Club at Claridges on May 8 in London, England. Giving in to the high-slit trend, Kate wore an elegant, floor-length cream Roland Mouret gown, accessorizing with strappy metallic sandals by Jimmy Choo. Samir Hussein / WireImage
Clad in royal blue, Kate poses pretty at Goldsmith's Hall in central London on April 26, following a reception to celebrate the Scott-Amundsen Centenary Race to the South Pole. Leon Neal / AFP - Getty Images
What a gentleman: Prince William shelters Kate (wearing a custom Matthew Williamson dress) from the rain as they arrive for the British Premiere of "African Cats" in London on April 25. Luke Macgregor / Reuters
The Duchess of Cambridge, clad in a cobalt blue Reiss dress and a colorful bracelet, plants a tree after opening a children's hospice in Ipswich, England on March 19. Andrew Winning / Reuters
Dressed in theme, Kate presented shamrock flowers at a parade ground at an army base in southern England on March 17, St. Patrick's Day. Toby Melville / Reuters
Kate knows how to dress up and down her coral-colored jeans. On left, she tried her hand at field hockey at the Riverside Arena in the Olympic Park on March 15 in London. On right, she wears the Team GB official supporter's scarf during the same visit. WPA Pool via Getty Images, Reuters
Duchess Kate arrives to visit the Prince's Foundation for Children and the Arts at the Dulwich Gallery in South London on March 15, 2012. The Duchess visited the Dulwich after playing hockey with members of the British Olympic team at the Riverside Arena. Miguel Medina / AFP - Getty Images
Kate arrives at Leicester Train Station as she accompanies Queen Elizabeth II and Prince Philip, Duke of Edinburgh, on the first date of Queen Elizabeth II's Diamond Jubilee tour of the U.K., March 8, 2012. Indigo / Getty Images Contributor
From left, Catherine, Duchess of Cambridge; Camilla, Duchess of Cornwall, and Queen Elizabeth II await a plaque unveiling outside Fortnum & Mason store on March 1, 2012 in London. The trio met military personnel and staff, viewed the store's Diamond Jubilee product ranges and unveiled a plaque for the regeneration of Piccadilly. Toby Melville / WPA Pool via Getty Images
In her role as Patron of The Art Room, Duchess Kate leaves after visiting The Art Room's classroom at Rose Hill Primary School on Feb. 21, 2012 in Oxford, England. Indigo / Getty Images Contributor
Duchess Kate visits Alder Hey Children's Hospital on Feb. 14, 2012, in Liverpool, England. She was visiting charities while husband Prince William was serving in the Falklands. WPA Pool via Getty Images
Kate attends a preview of Lucian Freud paintings at the National Portrait Gallery on Feb. 8, 2012 in London, England. The royal, who has a degree in the history of art and became patron last month of the National Portrait Gallery, attended the exhibition, featuring 130 artworks spanning the length of Freud's painting career from the early 1940s until his final, unfinished work. Yui Mok / WPA Pool via Getty Images
Britain's Prince William arrives with Duchess Kate, wearing a lace gown by Alice Temperley, to the UK premiere of the film 'War Horse' in London Jan. 8, 2012. Paul Hackett / Reuters
Kate, wearing a colorful winter hat, arrives to attend a Christmas Service at St. Mary's church on the grounds of Sandringham Estate, the Queen's Norfolk retreat in England, on Dec. 25, 2011. Lefteris Pitarakis / AP
Kate watches a performance at Centerpoint's Camberwell Foyer in London on Dec. 21, 2011. The national charity Centrepoint provides housing and support to improve the lives of homeless young people aged 16 to 25. Ben Stansall / Pool via Reuters
(From L-R) Britain's Prince William, Catherine, Duchess of Cambridge and Prince Harry leave after attending "A Night of Heroes," a gala to honor members of the British armed forces in London on Dec. 19, 2011. John Stillwell / AFP - Getty Images
Catherine, Duchess of Cambridge and Prince William arrive for a concert at the Royal Albert Hall on Dec. 6, 2011 in London, England. Kate stepped out in a tulip dress from Zara. Chris Jackson / Getty Images
Kate stays safe safe in a hard hat as she visits the UNICEF emergency supply center on Nov. 2, 2011 in Copenhagen, Denmark. Getty Images
The Duchess of Cambridge arrives at Machan Coffee bar in the center of Birmingham, Britain, wearing a military-style silk blouse with an embellished wool skirt from Alexander McQueen in August 2011. David Jones / EPA
Catherine and Prince William attend the wedding of Zara Phillips and Mike Tindall on July 30, 2011, in Edinburgh, Scotland. It was largely a low-key affair, with only a hint of the glamor and excitement of Will and Kate’s show-stopping nuptials. Getty Images
Prince William and Kate prepare for their departure from Los Angeles in July 2011 following a nonstop weekend that included a few chukkas of polo, time with Hollywood’s own version of royalty and several events that raised millions for charity. John Shearer / Pool via AP
Britain’s Prince William and his wife Catherine arrive at the BAFTA Brits to Watch event in Los Angeles on July 9, 2011. Mark Large / Pool via Reuters
The Duchess of Cambridge attends the Foundation Polo Challenge in Carpinteria, Calif., in July 2011. The event benefits the American Friends of the Foundation of Prince William and Prince Harry, a charity which supports disadvantaged children, conservation and sustainable development, veterans and military families. Robyn Beck / AFP - Getty Images
Prince William and Kate look on during a private reception at the British Consul-General's residence in Los Angeles on July 8, 2011. Chris Pizzello / Pool via AP
Kate, the Duchess of Cambridge, attends a rodeo demonstration at the Calgary Stampede on Thursday, July 7, 2011, in Calgary, Alberta. Nathan Denette / AP
Duchess Kate wears a yellow silk dress from Jenny Packham while visiting the University of Calgary hospital during her trip with Prince William to Calgary, Alberta, July 7, 2011. Todd Korol / Pool via Reuters
The Duchess of Cambridge changes into pants before departing withPrince William on a sea plane after visiting Yellowknife, Northwest Territories on July 5, 2011. Phil Noble / Reuters
The Duke and Duchess of Cambridge arrive at a ceremony at Province House in Charlottetown on Prince Edward Island as part of their Royal Tour of Canada, on July 4, 2011. Robert F. Bukaty / AP
Duchess Kate arrives on board HMCS Montreal on July 2, 2011 in Montreal, Canada. Chris Jackson / Getty Images
The Duchess of Cambridge attends a Freedom of the City Ceremony outside City Hall on July 3, 2011 in Quebec, Canada. George Pimentel / Getty Images
The Duchess of Cambridge visits the Canadian Museum of Civilization in Gatineau, Quebec, where she watched new citizens receive their citizen certificates on Canada Day, June 1, 2011. Arthur Edwards / The Sun / Pa / EPA
Duchess Kate attends the fourth round match between Tsvetana Pironkova of Bulgaria and Venus Williams of the United States at the Wimbledon Lawn Tennis Championships in London on June 27, 2011. Clive Brunskill / Getty Images
The royal couple attend the Irish Guards Afghanistan Operational Medals Parade at Victoria Barracks on June 25, 2011, in Windsor, England. Getty Images
Britain's Prince William and the Duchess of Cambridge, in a navy suit by Amanda Wakeley, pose for the official tour portrait for their trip to Canada and California, in the gardens of Clarence House in London on June 3, 2011. St James's Palace via Reuters
Duchess Kate watches the procession pass at the Order of The Garter Service in Windsor, England, on June 13, 2011. The annual service is held in St. George's Chapel at Windsor Castle. Kirsty Wigglesworth / AP
The Duchess of Cambridge leaves St. George’s Chapel, with other members of the royal family, after a service to mark Prince Philip's 90th birthday, in Windsor, west of London on June 12, 2011.

Kate wore the same periwinkle blue Jacquard coat dress that she wore in 2009 for the wedding of her husband’s close friend, Nicholas van Cutsem. Carl Court / Pool via Reuters
The Duchess of Cambridge attends the wedding of friends Sam Waley-Cohen and Annabel Ballin on June 11, 2011, wearing a dress that she was spotted in four years earlier while on the town with her sister. Indigo / Getty Images
Duchess Kate, right, is surrounded by members of her husband's family, including Sophie, Countess of Wessex, Princess Michael of Kent, Prince Harry, Lady Louise Windsor and Eloise Taylor, after the Trooping the Colour Parade on June 11, 2011 in London. Indigo / Getty Images
Duchess Kate went high fashion on June 9, 2011 and wore a $6,000 sparkling Jenny Packham gown to the 10th Annual Absolute Return for Kids Gala Dinner at Kensington Palace. Arthur Edwards / Pool via AFP - Getty Images
Britain's Prince William and the Duchess of Cambridge walk together on the grounds of Buckingham Palace on April 30, 2011, the day after their highly anticipated wedding at Westminster Abbey. Kate is known for her "every-girl" fashion choices, like this blue dress said to be from retailer Zara. John Stillwell / Pool via Reuters
The Duchess of Cambridge changed into this strapless white satin gown and angora cardigan to attend the black tie reception at Buckingham Palace after her wedding to Prince William. This gown, along with her stunning wedding dress, was designed by Sarah Burton for Alexander McQueen. John Stillwell / AP
Kate waves as she arrives at Westminster Abbey for her wedding to Prince William, wearing a gown designed by Sarah Burton of Alexander McQueen. Odd Andersen / AFP - Getty Images
Kate — in a navy blue suit by British designer Amanda Wakeley — and Prince William visit Whitton Park on April 11, 2011 in Darwen, England. With less than three weeks to go until the Royal Wedding Prince William and Kate Middleton are making one of their final public appearances. Chris Jackson / Getty Images
Kate arrives at City Hall on March 8, 2011, in Belfast, Northern Ireland. The royal couple visited Northern Ireland as part of a tour of the country that a couple of weeks ago took them to St Andrews University in Scotland and Anglesey in North Wales to launch a lifeboat. Chris Jackson / Getty Images
Prince William and Kate Middleton visit the University of St. Andrews as part of its 600th anniversary celebrations on Feb. 25, 2011, in Glenrothes, Scotland. Indigo via Getty Images
Britain's Prince William and his fiancee Kate Middleton smile following a naming ceremony for the new Royal National Lifeboat Institution's (RNLI) Atlantic 85 lifeboat "Hereford Endeavour" at Treadur Bay lifeboat station on Anglesey, North Wales, Feb. 24, 2011. Phil Noble / Reuters
Britain's Prince William and Kate Middleton pose in one of two official engagement portraits, taken by photographer Mario Testino in the Council Chamber in the State Apartment at St James's Palace in London on Nov. 25, 2010. Reuters
Prince William and fiancee Kate Middleton pose for photographers during a photocall to mark their engagement, in the State Rooms of St James's Palace, central London. Ben Stansall / AFP - Getty Images
Kate Middleton and Prince William attend Harry Meade and Rosie Bradford's wedding at the Church of St. Peter and St. Paul on Oct. 23, 2010, in Northleach near Cheltenham, England. Indigo via Getty Images
Kate Middleton attends the wedding of Nicholas van Cutsem and Alice Hadden-Paton at The Guards Chapel, Wellington Barracks, on Aug. 14, 2009, in London, England. Indigo via Getty Images
Catherine attends the Epsom Downs Racecourse on June 4, 2011 in a white chiffon dress from Reiss and a white tweed jacket, where she watched the queen's horse take third place. Dave M. Benett / Getty Images
Kate Middleton, in a dress by Daniella Issa Helayel, attends the Boodles Boxing Ball, in aid of Starlight Children's Foundation, Royal Lancaster Hotel, London, England, on June 7, 2008. Davidson/O'Neill / Rex USA
Prince Harry, Kate Middleton and Camilla, Duchess of Cornwall, laugh together as they watch the Order of the Garter procession at Windsor Castle on June 16, 2008, in Windsor, England. Tim Graham Picture Library / Pool via Getty Images
Kate Middleton walks the cross country course as she attends the Badminton Horse Trials on May 4, 2007, in Badminton, England. Indigo via Getty Images
Kate Middleton attends the final day of Cheltenham Festival on March 16, 2007, in Gloucestershire, England. Tim Graham / Getty Images
Prince William stands beside Kate Middleton in the paddock enclosure on the first day of the annual Cheltenham Race Festival at Cheltenham Race course, west of England, on March 13, 2007. Carl De Souza / AFP - Getty Images
Kate Middleton leaves London's Mahiki club on Feb. 1, 2007. Niki Nikolova / FilmMagic
Kate Middleton leaves St. Cyriac's Church, Lacock, Wiltshire, following the wedding of Laura Parker Bowles and Harry Lopes on May 7, 2006. Tim Ockenden / PA via AP
Kate Middleton wears a Russian-style fur hat to the final day of Cheltenham Races on March 17, 2006, in Cheltenham, England. Tim Graham / Getty Images
Kate Middleton arrives at the Sovereign's Parade at The Royal Military Academy in Camberley, west of London, on Dec. 15, 2006. Prince William was among the 446 officer cadets on parade, of whom 227 passed out receiving their commission and becoming officers. Ben Gurr / AFP - Getty Images
Kate Middleton is seen shopping around London in September 2005. Rex USA
Kate Middleton attends the Festival of British Eventing at Gatcombe Park on Aug. 6, 2005, in Stroud, England. Indigo via Getty Images
Kate Middleton and her father, Michael Middleton, sighted prior to her graduation ceremony at the University of St. Andrews, where she obtained a 2:1 degree in the History of Art on June 23, 2005, in St. Andrews, Scotland. Indigo / Indigo via Getty Images
Kate Middleton after her graduation ceremony at St Andrews University, in Scotland, in 2005. Michael Dunlea / Daily Mail via AP
PORTSMOUTH, ENGLAND - FEBRUARY 12: Catherine, Duchess of Cambridge laughs as she visits the home of Ben Ainslie Racing (BAR) in Portsmouth Old Town on February 12, 2015 in Portsmouth, England. (Photo by Chris Jackson/Getty Images) Chris Jackson / Getty Images