Kate Middleton ditches her heels for sneakers to play in her tree house at Chelsea Flower Show

Kate Middleton was as elegant as ever when she showed up to a press day for the RHS Chelsea Flower Show in London, England, on Monday.

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Duchess Kate at the flower show
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Duchess Kate at the flower show
LONDON, ENGLAND - MAY 20: Catherine, Duchess of Cambridge attends her Back to Nature Garden at the RHS Chelsea Flower Show 2019 press day at Chelsea Flower Show on May 20, 2019 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - MAY 20: Catherine, Duchess of Cambridge attends her Back to Nature Garden at the RHS Chelsea Flower Show 2019 press day at Chelsea Flower Show on May 20, 2019 in London, England. (Photo by Karwai Tang/WireImage)
Britain's Catherine, Duchess of Cambridge writes a message to pin to a board during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge writes a message to pin to a board during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge arrives visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge (C) reacts during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge (R) talks with Nicholas Bacon, Royal Horticultural Society (RHS) chairman during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
LONDON, UNITED KINGDOM - MAY 20: Catherine, Duchess of Cambridge attaches her message to a board during her visit to the RHS Chelsea Flower Show at the Royal Hospital Chelsea on May 20, 3019 in London, United Kingdom. (Photo by Yui Mok – WPA Pool/Getty Images)
Britain's Catherine, Duchess of Cambridge reacts during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge visits the 'Back to Nature Garden' garden, that she designed along with Andree Davies and Adam White, during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge speaks with a visitor as she visits the 'Back to Nature Garden' garden, that she designed along with Andree Davies and Adam White, during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge visits the 'Back to Nature Garden' garden, that she designed along with Andree Davies and Adam White, during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge walks to climb a ladder into a treehouse as she visits the 'Back to Nature Garden' garden, that she designed along with Andree Davies and Adam White, during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge visits the 'Back to Nature Garden' garden, that she designed along with Andree Davies and Adam White, during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge climbs a ladder into a treehouse as she visits the 'Back to Nature Garden' garden, that she designed along with Andree Davies and Adam White, during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge speaks with visitors in the treehouse as she visits the 'Back to Nature Garden' garden, that she designed along with Andree Davies and Adam White, during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge climbs a ladder into a treehouse as she visits the 'Back to Nature Garden' garden, that she designed along with Andree Davies and Adam White, during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge waves as she leaves after visiting the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
LONDON, ENGLAND - MAY 20: Catherine, Duchess of Cambridge attends her Back to Nature Garden at the RHS Chelsea Flower Show 2019 press day at Chelsea Flower Show on May 20, 2019 in London, England. (Photo by Karwai Tang/WireImage)
Britain's Catherine, Duchess of Cambridge visits the 'Back to Nature Garden' garden, that she designed along with Andree Davies (R) and Adam White (C), during her visit to the 2019 RHS Chelsea Flower Show in London on May 20, 2019. - The Chelsea flower show is held annually in the grounds of the Royal Hospital Chelsea. (Photo by Yui Mok / POOL / AFP) (Photo credit should read YUI MOK/AFP/Getty Images)
LONDON, UNITED KINGDOM - MAY 20: Catherine, Duchess of Cambridge with Sir Nicholas Bacon, chairman of the Royal Horticultural Society, at the RHS Chelsea Flower Show at the Royal Hospital Chelsea on May 20, 3019 in London, United Kingdom. (Photo by Yui Mok – WPA Pool/Getty Images)
LONDON, UNITED KINGDOM - MAY 20: Catherine, Duchess of Cambridge waves as she leaves after visiting her garden at the RHS Chelsea Flower Show at the Royal Hospital Chelsea on May 20, 3019 in London, United Kingdom. (Photo by Yui Mok – WPA Pool/Getty Images)
LONDON, UNITED KINGDOM - MAY 20: Catherine, Duchess of Cambridge visits her garden at the RHS Chelsea Flower Show at the Royal Hospital Chelsea on May 20, 3019 in London, United Kingdom. (Photo by Yui Mok – WPA Pool/Getty Images)
LONDON, ENGLAND - MAY 20: Catherine, Duchess of Cambridge attends her Back to Nature Garden at the RHS Chelsea Flower Show 2019 press day at Chelsea Flower Show on May 20, 2019 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - MAY 20: Catherine, Duchess of Cambridge attends the RHS Chelsea Flower Show 2019 press day at Chelsea Flower Show on May 20, 2019 in London, England. (Photo by Jeff Spicer/Getty Images)
Britain's Catherine, Duchess of Cambridge visits the Adam White and Andree Davies co-designed 'Back to Nature' garden at the RHS Chelsea Flower Show in London on May 20, 2019. (Photo by Daniel LEAL-OLIVAS / AFP) (Photo credit should read DANIEL LEAL-OLIVAS/AFP/Getty Images)
LONDON, UNITED KINGDOM - MAY 20: Catherine, Duchess of Cambridge speaks children during a visit to her garden at the RHS Chelsea Flower Show at the Royal Hospital Chelsea on May 20, 3019 in London, United Kingdom. (Photo by Yui Mok – WPA Pool/Getty Images)
LONDON, UNITED KINGDOM - MAY 20: Catherine, Duchess of Cambridge speaks with a visitor during her visit to her garden at the RHS Chelsea Flower Show at the Royal Hospital Chelsea on May 20, 3019 in London, United Kingdom. (Photo by Yui Mok – WPA Pool/Getty Images)
LONDON, UNITED KINGDOM - MAY 20: Catherine, Duchess of Cambridge during her visit to the RHS Chelsea Flower Show at the Royal Hospital Chelsea on May 20, 3019 in London, United Kingdom. (Photo by Yui Mok – WPA Pool/Getty Images)
LONDON, UNITED KINGDOM - MAY 20: Catherine, Duchess of Cambridge speaks children during a visit to her garden at the RHS Chelsea Flower Show at the Royal Hospital Chelsea on May 20, 3019 in London, United Kingdom. (Photo by Yui Mok – WPA Pool/Getty Images)
LONDON, ENGLAND - MAY 20: Catherine, Duchess of Cambridge attends the RHS Chelsea Flower Show 2019 press day at Chelsea Flower Show on May 20, 2019 in London, England. (Photo by Jeff Spicer/Getty Images)
LONDON, ENGLAND - MAY 20: Catherine, Duchess of Cambridge attends the RHS Chelsea Flower Show 2019 press day at Chelsea Flower Show on May 20, 2019 in London, England. (Photo by Jeff Spicer/Getty Images)
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The Duchess of Cambridge was ready to play in her Back to Nature Garden area -- which features a rope swing and a tree house -- and opted to wear a white pair of Superga sneakers over her usual high heels. She paired the comfy footwear with a white blouse by M.i.h Jeans and khaki Massimo Dutti culottes. 

Kate returned to the garden after taking her three children, 5-year-old Prince George, 4-year-old Princess Charlotte and 1-year-old Prince Louis, and her husband, Prince William, there over the weekend. "The children played last night in a way I hadn’t imagined," the 37-year-old royal told reporters on Monday after her family day outdoors. "They were throwing stones. I hadn’t actually thought that that was what they would be doing. They kicked their shoes off, and wanted to paddle in the stream… using it in a way that I hadn’t anticipated."

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New photos of the Cambridge family shared
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New photos of the Cambridge family shared
The Duke and Duchess of Cambridge are very pleased to share some new photographs of their family as they visited the RHS Back to Nature Garden at the #ChelseaFlowerShow on Sunday afternoon. The photographs were taken by @mattporteous. The #RHSChelsea Back to Nature Garden, designed by The Duchess and award-winning landscape architects Andrée Davies and Adam White of Davies White Landscape Architects, is a woodland setting for families and communities to come together and connect with nature. Her Royal Highness is a strong advocate for the proven benefits the outdoors has on physical and mental health, and the positive impact that nature and the environment can have on childhood development in particular. Over the past months, Prince George, Princess Charlotte and Prince Louis have helped The Duchess gather moss, leaves and twigs to help decorate @The_RHS Back to Nature Garden. Hazel sticks collected by the family were also used to make the garden’s den. The Duchess told Monty Don in an interview for the BBC: “I really feel that nature and being interactive outdoors has huge benefits on our physical and mental wellbeing, particularly for young children. I really hope that this woodland that we have created really inspires families, kids and communities to get outside, enjoy nature and the outdoors, and spend quality time together.”
The Duke and Duchess of Cambridge are very pleased to share some new photographs of their family as they visited the RHS Back to Nature Garden at the #ChelseaFlowerShow on Sunday afternoon. The photographs were taken by @mattporteous. The #RHSChelsea Back to Nature Garden, designed by The Duchess and award-winning landscape architects Andrée Davies and Adam White of Davies White Landscape Architects, is a woodland setting for families and communities to come together and connect with nature. Her Royal Highness is a strong advocate for the proven benefits the outdoors has on physical and mental health, and the positive impact that nature and the environment can have on childhood development in particular. Over the past months, Prince George, Princess Charlotte and Prince Louis have helped The Duchess gather moss, leaves and twigs to help decorate @The_RHS Back to Nature Garden. Hazel sticks collected by the family were also used to make the garden’s den. The Duchess told Monty Don in an interview for the BBC: “I really feel that nature and being interactive outdoors has huge benefits on our physical and mental wellbeing, particularly for young children. I really hope that this woodland that we have created really inspires families, kids and communities to get outside, enjoy nature and the outdoors, and spend quality time together.”
The Duke and Duchess of Cambridge are very pleased to share some new photographs of their family as they visited the RHS Back to Nature Garden at the #ChelseaFlowerShow on Sunday afternoon. The photographs were taken by @mattporteous. The #RHSChelsea Back to Nature Garden, designed by The Duchess and award-winning landscape architects Andrée Davies and Adam White of Davies White Landscape Architects, is a woodland setting for families and communities to come together and connect with nature. Her Royal Highness is a strong advocate for the proven benefits the outdoors has on physical and mental health, and the positive impact that nature and the environment can have on childhood development in particular. Over the past months, Prince George, Princess Charlotte and Prince Louis have helped The Duchess gather moss, leaves and twigs to help decorate @The_RHS Back to Nature Garden. Hazel sticks collected by the family were also used to make the garden’s den. The Duchess told Monty Don in an interview for the BBC: “I really feel that nature and being interactive outdoors has huge benefits on our physical and mental wellbeing, particularly for young children. I really hope that this woodland that we have created really inspires families, kids and communities to get outside, enjoy nature and the outdoors, and spend quality time together.”
👀 We invite you to take a sneak peek at The Duchess of Cambridge’s #RHSChelsea ‘Back to Nature’ Garden! The woodland wilderness garden aims to get people back to nature, and highlight the benefits of the natural world on our mental and physical wellbeing. Speaking ahead of @The_RHS garden unveiling, The Duchess of Cambridge said: “In recent years I have focussed much of my work on the early years, and how instrumental they are for outcomes later in life. I believe that spending time outdoors when we are young can play a role in laying the foundations for children to become happy, healthy adults.” Some features of the #ChelseaFlowerShow garden include: 1. A swing seat hanging below the garden’s centrepiece, a high platform tree house, encouraging creative play and discovery for all generations. 2. The high platform tree house is inspired by a bird or animal nest and provides a wonderful place to retreat and look out through the trees. The treehouse is made from chestnut, with hazel, stag horn oak and larch nest cladding. 3/4. The garden is aiming to inspire interaction with the natural environment through its multi-sensory, green and blue plant scheme. The garden will be filled with incredible edibles, plants for craft activities, forest scents and a diverse range of plants, shrubs and trees of different heights and textures. The garden forms part of Her Royal Highness’s ongoing work on early childhood development and her mission to support efforts that give every child the best possible start in life. The Duchess has committed to making early childhood development the focus of her work in the years to come, and believes that providing children with the opportunity to spend time outdoors can play an important role.
90% of our adult brains are developed before the age of 5 and what a child experiences in those really early years directly affects how the brain develops. That’s why I think it’s so important, whether we’re parents or carers or family members, really engage in quality time with children and babies from a really young age. I really feel that nature and being interactive outdoors has huge benefits on our physical and mental wellbeing, particularly for young kiddies. The #RHSChelsea Back to Nature Garden is a natural, creative place for them to play. I really hope that this woodland that we have created, in a huge collaboration here really inspires families, kids and communities to get outside, enjoy nature and the outdoors and spend quality time together. #ChelseaFlowerShow
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It's the Duchess' hope that the Back to Nature Garden will inspire families, like her own, to "to get outside and enjoy nature."

On Monday, Kate was eager to hang out with school children at the event, and even climbed the tree house with them. She also made little boats from reeds that were raced down the stream, and helped the kids cook marshmallows over an open fire. 

In addition to being family friendly, Kate's garden also appears to have a tribute to William's late mother, Princess Diana. Just behind the rope swing are blue forget-me-nots, one of the Princess of Wales' favorite flowers.

Here's more with the outdoorsy Duchess:

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Kate Middleton's best casual moments
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Kate Middleton's best casual moments
EPPING, UNITED KINGDOM - MARCH 28: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge visits the Scouts' headquarters at Gilwell Park, to learn more about the organisation's new pilot scheme to bring Scouting to younger children on March 28, 2019 in Epping, England. The Duchess's visit to Gilwell Park also celebrates the site's 100th anniversary year. (Photo by Max Mumby/Indigo/Getty Images)
LONDON, ENGLAND - MARCH 12: Catherine, Duchess of Cambridge visits the Henry Fawcett Children's Centre in Kennington on March 12, 2019 in London, England. (Photo by Neil Mockford/GC Images)
BELFAST, NORTHERN IRELAND - FEBRUARY 27: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge plays football during a visit to Windsor Park Stadium, home of the Irish Football Association on February 27, 2019 in Belfast, Northern Ireland. Prince William last visited Belfast in October 2017 without his wife, Catherine, Duchess of Cambridge, who was then pregnant with the couple's third child. This time the couple concentrate on the young people of Northern Ireland. Their engagements include a visit to Windsor Park Stadium, home of the Irish Football Association, activities at the Roscor Youth Village in Fermanagh, a party at the Belfast Empire Hall, Cinemagic - a charity that uses film, television and digital technologies to inspire young people and finally dropping in on a SureStart early years programme. (Photo by Max Mumby/Indigo/Getty Images)
GLOUCESTER, UNITED KINGDOM - JUNE 10: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Prince George of Cambridge, Princess Charlotte of Cambridge and Catherine, Duchess of Cambridge attend the Maserati Royal Charity Polo Trophy at the Beaufort Polo Club on June 10, 2018 in Gloucester, England. (Photo by Max Mumby/Indigo/Getty Images)
LONDON, UNITED KINGDOM - MARCH 22: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge attends a SportsAid event at the Copper Box Arena in Queen Elizabeth Olympic Park on March 22, 2018 in London, England. (Photo by Max Mumby/Indigo/Getty Images) *** Local Caption *** Catherine, Duchess of Cambridge
STOCKHOLM, SWEDEN - JANUARY 30: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge attends a Bandy hockey match where they will learn more about the popularity of the sport during day one of their Royal visit to Sweden and Norway on January 30, 2018 in Stockholm, Sweden. (Photo by Karwai Tang/WireImage)
LONDON, UNITED KINGDOM - JANUARY 17: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge visits The Wimbledon Junior Tennis Initiative at Bond Primary School on January 17, 2018 in London, England. (Photo by Max Mumby/Indigo/Getty Images)
BIRMINGHAM, UNITED KINGDOM - NOVEMBER 22: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge visits Aston Villa Football Club to see the work of the Coach Core programme on November 22, 2017 in Birmingham, England. (Photo by Max Mumby/Indigo/Getty Images)
BIRMINGHAM, ENGLAND - NOVEMBER 22: Catherine, Duchess of Cambridge visits the Jaguar Land Rover's Solihull Manufacturing Plant on November 22, 2017 in Birmingham, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
LONDON, ENGLAND - OCTOBER 31: Catherine, Duchess of Cambridge visits the Lawn Tennis Association at National Tennis Centre on October 31, 2017 in London, England. The Duchess of Cambridge became Patron of the LTA in December 2016. (Photo by Samir Hussein/Samir Hussein/WireImage)
LONDON, UNITED KINGDOM - OCTOBER 18: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge attends the Coach Core graduation ceremony for more than 150 Coach Core apprentices at The London Stadium on October 18, 2017 in London, England. (Photo by Max Mumby/Indigo/Getty Images)
BERLIN, GERMANY - JULY 19: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge after participating in a rowing race between the twinned town of Cambridge and Heidelberg on day 2 of their official visit to Germany on July 20, 2017 in Heidelberg, Germany. (Photo by DMC/GC Images)
ARLINGHAM, GLOUCESTERSHIRE - MAY 03: Catherine, Duchess of Cambridge visits Farms for City Children on May 3, 2017 in Arlingham, Gloucestershire. Farms for City Children is a charity which offers children in the UK a chance to live and work on a real farm for a week. (Photo by Samir Hussein/WireImage)
Britain's Catherine, Duchess of Cambridge hosts a reception for runners from Team Heads Together ahead of the 2017 Virgin Money London Marathon, at Kensington Palace on April 19, 2017 in London. Mental health campaign, Heads Together is the Charity of the Year for the Virgin Money London Marathon which will be run on April 23, 2017. / AFP PHOTO / POOL / Chris Jackson (Photo credit should read CHRIS JACKSON/AFP/Getty Images)
STAMFORD, ENGLAND - FEBRUARY 14: Catherine, Duchess of Cambridge visits the RAF Air Cadets at RAF Wittering on February 14, 2017 in Stamford, England. The Duchess of Cambridge is Royal Patron and Honorary Air Commandant of the Air Cadet Organisation. (Photo by Samir Hussein/Samir Hussein/WireImage)
LONDON, UNITED KINGDOM - FEBRUARY 05: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge take part in a running race against Prince Harry as they join a Team Heads Together London Marathon Training Day at the Queen Elizabeth Olympic Park on February 5, 2017 in London, England. (Photo by Max Mumby/Indigo/Getty Images)
KING'S LYNN, UNITED KINGDOM - DECEMBER 14: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge attends a special Cub Scout Pack meeting with Cubs from the Kings Lynn District to celebrate 100 years of Cubs on December 14, 2016 in King's Lynn, England. (Photo by Max Mumby/Indigo/Getty Images)
VICTORIA, BC - OCTOBER 01: Catherine, Duchess of Cambridge, meets members of the Canadian public after disembarking the ship Pacific Grace in Victoria Harbour on the final day of their Royal Tour of Canada on October 1, 2016 in Victoria, Canada.
PORTSMOUTH, UNITED KINGDOM - JULY 24: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge visits Land Rover BAR during the America's Cup World Series on July 24, 2016 in Portsmouth, England. (Photo by Max Mumby/Indigo/Getty Images)
PORTSMOUTH, UNITED KINGDOM - JULY 24: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge visits Land Rover BAR during the America's Cup World Series on July 24, 2016 in Portsmouth, England. (Photo by Max Mumby/Indigo/Getty Images)
PARO, BHUTAN - APRIL 15: (NO UK SALES FOR 28 DAYS) Catherine, Duchess of Cambridge hikes to Paro Taktsang, the Tiger's Nest monastery on April 15, 2016 in Paro, Bhutan. (Photo by Samir Hussein/Pool/WireImage)
PORTSMOUTH, ENGLAND - JULY 26: Catherine, Duchess of Cambridge visits the New Zealand team HQ during a visit to The America's Cup World Series on July 26, 2015 in Portsmouth, England. (Photo by Samir Hussein/WireImage)
Prince George and Catherine, Duchess of Cambridge attend the Gigaset Charity Polo Match at the Beaufort Polo Club in Tetbury. (Photo by Zak Hussein/Corbis via Getty Images)
GLASGOW, UNITED KINGDOM - JULY 28: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge arrives to watch the Gymnastics at the SECC Precinct during the 20th Commonwealth Games on July 28, 2014 in Glasgow, Scotland. (Photo by Max Mumby/Indigo/Getty Images)
CIRENCESTER, UNITED KINGDOM - JUNE 15: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge watches Prince William, Duke of Cambridge & Prince Harry play in the Jerudong Trophy charity polo match at Cirencester Park Polo Club on June 15, 2014 in Cirencester, England. (Photo by Max Mumby/Indigo/Getty Images)
LONDON, UNITED KINGDOM - OCTOBER 18: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge attends a SportsAid Athlete Workshop in the Copper Box Arena at the Queen Elizabeth Olympic Park on October 18, 2013 in London, England. (Photo by Max Mumby/Indigo/Getty Images)
HOLYHEAD, UNITED KINGDOM - AUGUST 30: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge, accompanied by her Private Secretary Rebecca Deacon, attends the start of the Ring O'Fire Anglesey Costal Ultra Marathon on August 30, 2013 in Holyhead, Wales. (Photo by Max Mumby/Indigo/Getty Images)
WINDERMERE, UNITED KINGDOM - MARCH 22: Catherine, Duchess of Cambridge visits Great Tower Scout camp on March 22, 2013 in Windermere, Cumbria, United Kingdom. The Duchess of Cambridge attended a scout volunteer training day today in Newby Bridge in Cumbria. The training course is being run in Great Tower, one of the Scout Association’s national activity centres set in 250 acres of land offering a wide range of land and water based activities, including archery, low and high ropes, climbing, abseiling, sailing and canoeing. (Photo by Andy Stenning WPA - Pool/Getty Images)
WINDSOR, ENGLAND - SEPTEMBER 02: Catherine, Duchess of Cambridge arrives in the rain at Eton Dorney for the rowing on day 4 of the London 2012 Paralympic Games at Eton Dorney on September 2, 2012 in Windsor, England. (Photo by Chris Jackson/Getty Images)
LONDON, UNITED KINGDOM - AUGUST 9: Prince Harry and Catherine, Duchess of Cambridge visit athletes at Team GB House in the Westfield Centre on Day 13 of the London 2012 Olympic Games on August 9, 2012 in London, England. (Photo by John Stillwell - WPA Pool/Getty Images)
LONDON, ENGLAND - JULY 31: Catherine, Duchess of Cambridge walks to her seat prior to the Show Jumping Eventing Equestrian on Day 4 of the London 2012 Olympic Games at Greenwich Park on July 31, 2012 in London, England. (Photo by Pascal Le Segretain/Getty Images)
LONDON, UNITED KINGDOM - JULY 26: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge sighting on July 26, 2012 in London, England. (Photo by Niki Nikolova/FilmMagic)
Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge watch traditional Calgary Stampede activities at the BMO Centre on July 7, 2011 in Calgary, Canada. (Photo by George Pimentel/WireImage)
(NO UK SALES FOR 28 DAYS) Catherine, Duchess of Cambridge visits a part of town devastated by a fire in May 2011 on July 7, 2011 in Slave Lake, Alberta.
Catherine, Duchess of Cambridge board a float plane at the Old Town Float Base on day 6 of the Royal Couple's North American Tour, July 5 2011 in Yellowknife, Canada.
PRINCE EDWARD ISLAND, PE - JULY 04: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge arrive on shore after rowing dragon boats across Dalvay lake on July 4, 2011 in Charlottetown, Canada. (Photo by George Pimentel/WireImage)
CIRENCESTER, UNITED KINGDON - JUNE 07: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Kate Middleton watches HRH Prince William and HRH Prince Harry compete in The Dorchester Trophy polo match at Cirencester Park Polo Club on June 7, 2009 in Cirencester, England. (Photo by Indigo/Getty Images)
ASCOT, UNITED KINGDOM - MAY 10: Kate Middleton watches Prince William play in the Audi Polo Challenge charity polo match at Coworth Park Polo Club on May 10, 2009 in Ascot, England. (Photo by Indigo/Getty Images)
ETON, UNITED KINGDOM - MARCH 18: Prince William talks with Kate Middleton and her sister Pippa Middleton after playing the Field Game in an old boys match at Eton College on March 18, 2006 in Eton, England. (Photo by Indigo/Getty Images)
STROUD, UNITED KINGDOM - JUNE 04: Kate Middleton attends the Festival of British Eventing at Gatcombe Park on August 6, 2005 in Stroud, England. (Photo by Indigo/Getty Images)
ST. ANDREWS, UNITED KINGDOM - JUNE 23: 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. (Photo by Indigo/Getty Images)
AKROTIRI, CYPRUS - DECEMBER 05: Catherine, Duchess of Cambridge arrives at RAF Akrotiri to meet with serving personnel, families living on the base and members of the local community during an official visit on December 5, 2018 in Akrotiri, Cyprus. (Photo by Karwai Tang/WireImage)
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