During the Audi Polo Challenge charity event at Coworth Polo Club in Berkshire, Prince William was seen in the middle of the field working on some serious yoga moves.
The best part? He performed the moves while wearing white jeans! Clearly the future King is not afraid of grass stains!
The polo match was a star-studded affair, drawing many celebrities including Tom Hardy and his wife, Charlotte Riley and America's Next Top Model contestant Winnie Harlow.
Wills and Harry will be competing in a series of charity polo matches through the summer months in England to raise money for 17 different charity organisations they support.
No sign of Princess Kate, who skipped this one.
More pics below. Enjoy!