Kate Middleton rocks casual stripes for Heads Together event ahead of London Marathon

Kate Middleton continued her nautical trend when it comes to her casual work wardrobe, switching out her favorite navy and white striped Me + Em Breton top for, well, another striped top. But this time, it included a pop of red.

Paired with blue skinny jeans and her white Superga sneakers, the look was still pretty nautical, and definitely on trend with Kate's go-to look.

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Kate's casual stripes for London Marathon prep day
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Kate's casual stripes for London Marathon prep day
LONDON, ENGLAND - APRIL 19: Catherine, Duchess of Cambridge speaks with runners after they put a Heads Together headband onto the Kensington Palace post-box in support of the Royal Mail wrapping 70 post-boxes that line the 2017 Virgin Money London Marathon route ahead of a reception for Team Heads Together, at Kensington Palace on April 19, 2017 in London, England. Heads Together is spearheaded by the Duke and Duchess of Cambridge and Prince Harry, in partnership with eight leading mental health charities that are tackling stigma, raising awareness, and providing vital help for people with mental health problems. (Photo by Chris Jackson - WPA Pool/Getty Images)
LONDON, ENGLAND - APRIL 19: Catherine, Duchess of Cambridge with runner Alex Stanley, put a Heads Together headband onto the Kensington Palace post-box in support of the Royal Mail wrapping 70 post-boxes that line the 2017 Virgin Money London Marathon route ahead of a reception for Team Heads Together, at Kensington Palace on April 19, 2017 in London, England. Heads Together is spearheaded by the Duke and Duchess of Cambridge and Prince Harry, in partnership with eight leading mental health charities that are tackling stigma, raising awareness, and providing vital help for people with mental health problems. (Photo by Chris Jackson - WPA Pool/Getty Images)
LONDON, ENGLAND - APRIL 19: Catherine, Duchess of Cambridge speaks with runners from Team Heads Together ahead of the 2017 Virgin Money London Marathon, at Kensington Palace on April 19, 2017 in London, England. Heads Together is spearheaded by the Duke and Duchess of Cambridge and Prince Harry, in partnership with eight leading mental health charities that are tackling stigma, raising awareness, and providing vital help for people with mental health problems. (Photo by Chris Jackson - WPA Pool/Getty Images)
LONDON, ENGLAND - APRIL 19: Catherine, Duchess of Cambridge speaks with Royal Mail CEO Moya Greene after they put a Heads Together headband onto the Kensington Palace post-box in support of the Royal Mail wrapping 70 post-boxes that line the 2017 Virgin Money London Marathon route ahead of a reception for Team Heads Together, at Kensington Palace on April 19, 2017 in London, England. Heads Together is spearheaded by the Duke and Duchess of Cambridge and Prince Harry, in partnership with eight leading mental health charities that are tackling stigma, raising awareness, and providing vital help for people with mental health problems. (Photo by Chris Jackson - WPA Pool/Getty Images)
Britain's Catherine, Duchess of Cambridge waits for a reception for Team Heads Together, at Kensington Palace, in London, Britain April 19, 2017. REUTERS/Chris Jackson/Pool
LONDON, ENGLAND - APRIL 19: Catherine, Duchess of Cambridge speaks with runners from Team Heads Together ahead of the 2017 Virgin Money London Marathon, at Kensington Palace on April 19, 2017 in London, England. Heads Together is spearheaded by the Duke and Duchess of Cambridge and Prince Harry, in partnership with eight leading mental health charities that are tackling stigma, raising awareness, and providing vital help for people with mental health problems. (Photo by Chris Jackson - WPA Pool/Getty Images)
Britain's Catherine, Duchess of Cambridge speaks with runners, as she put a Heads Together headband onto the Kensington Palace post-box in support of the Royal Mail wrapping 70 post-boxes that line the 2017 Virgin Money London Marathon route ahead of a reception for Team Heads Together, at Kensington Palace, in London, Britain April 19, 2017. REUTERS/Chris Jackson/Pool
Britain's Catherine, Duchess of Cambridge speaks with 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)
Britain's Catherine, Duchess of Cambridge speaks with 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)
Britain's Catherine, Duchess of Cambridge poses with runner Alex Stanley (CL) and runners after putting a Heads Together headband onto the Kensington Palace post-box ahead of a reception for Team Heads Together, 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)
Britain's Catherine, Duchess of Cambridge speaks with 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)
Britain's Catherine, Duchess of Cambridge speaks with 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)
Britain's Catherine, Duchess of Cambridge, together with runner Alex Stanley, puts a Heads Together headband onto the Kensington Palace post-box ahead of a reception for Team Heads Together, 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)
Britain's Catherine, Duchess of Cambridge speaks with 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)
Britain's Catherine, Duchess of Cambridge poses with runner Alex Stanley (CL) and runners after putting a Heads Together headband onto the Kensington Palace post-box ahead of a reception for Team Heads Together, 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)
LONDON, ENGLAND - APRIL 19: Catherine, Duchess of Cambridge speaks with runners from Team Heads Together ahead of the 2017 Virgin Money London Marathon, at Kensington Palace on April 19, 2017 in London, England. Heads Together is spearheaded by the Duke and Duchess of Cambridge and Prince Harry, in partnership with eight leading mental health charities that are tackling stigma, raising awareness, and providing vital help for people with mental health problems. (Photo by Chris Jackson - WPA Pool/Getty Images)
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Today, the Duchess of Cambridge hosted runners from the Heads Together marathon team at Kensington Palace to wish them luck in their final preparations for Sunday's Marathon. The event was also to unveil a fun initiative that's been cropping up across London -- where landmarks are "wearing" Heads Together headbands to support the fact that this year's event is the Mental Health Marathon.

Kate's new striped top is the Muvi Pullover by Luisa Spagnoli, the Italian designer we've seen her wear a few times. The color combination that Kate wore today isn't available anymore, but the sweater, which retails for $280, is still available in navy and yellow.

While Kate's top is a little pricey and (of course) sold out, we love this as a similar option. And if you just want to rock some red, white and blue stripes this summer, Nordstrom has a ton of great picks.

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