Pippa Middleton wearing Kiely's design at Wimbleton

Pippa Middleton made her debut at the royal box in Wimbleton on Thursday, dressed in a navy Orla Kiely dress.

The Duchess of Cambridge's younger sister choose a design from the popular Irish designer for her outing to the annual British tournament alongside her brother James.

Pippa choose a cotton blue and white macrame jacket with 3/4 length sleeves, white contrasting trims and button fastening by Orla Kiely, in what was a stylish yet elegant look.

A member of the Queen's Tennis Club, the 28-year-old is a regular attendee at the tournament.

Also a fan of the Irish designer, her big sister Kate wore a green Orla Kiely coat-dress on St Patrick's Day and a brown dress for one of her public appearances during the Jubilee tour of Britain.

An Irish born designer based in London, Kiely most recently collaborated with the clothing brand Uniqlo.