Sophie looked incredible today as she chatted with attendees at the Big Jubilee Lunch on The Long Walk in Windsor. The blonde royal looked elegant in a green tailored boucle jacket. The jacket has a wrap around belt and a V-neck neckline.
The 57-year-old can be seen wearing a white top underneath the jacket.
She paired the look with white trousers that appeared to be made from a linen material.
The countess wore small, yellow gold hoops with the look and a gold necklace.
Her blonde hair was tied back in a low ponytail as she greeted children.
As well as the Big Jubilee Lunch, a lunch took place at the Oval Cricket Ground in London.
Prince Charles was spotted there with his wife Camilla, the Duchess of Cornwall.
Meanwhile, Prince William, his wife Kate, the Duchess of Cambridge and their children were spotted at The Platinum Jubilee Pageant.
Kate looked stunning in a magenta Alexander McQueen dress.