Last night, Kate had swept her brunette locks back behind her ears and her make-up was minimal – giving her a natural look.

Interestingly, the Duchess had straightened her hair, instead of leaving it in its natural waves or curling it.

Before the reception, Kate and William had enjoyed a day packed full of activities, including a visit to the Mayan site of Caracol.

For the day’s events, the Duchess chose to don a pair of G-Star green trousers and a white t-shirt.

The t-shirt is the John Lewis Double Front Scoop neck top, which has already sold out online due to it being worn by Kate.