The blouse was a perfect piece for the start of Spring.
The blouse is reportedly the M.i.h Jeans 'Mabel' Broderie Anglaise Shirt in White, retailed at £225.
Royal fans can recreate the look on a budget with a similar shirt from high-street Mango for just £19.99.
Kate opted to leave the top button of the shirt undone for a more relaxed look.
Kate's dark denim jeans cut off just above the ankle and are perfect for the slightly warmer weather.