After leaving Harrow School, while studying at Central St. Martins College of Art and Design, Casely-Hayford began to contribute to a number of styling projects internationally.

Casely-Hayford currently works between London and Tokyo where the collections are produced; they focus on the idea of duality as a foundation for the brand's ethos.

In 2010, Casely-Hayford was made the global face of Converse[11]'s international ad campaign, which celebrates the 50th anniversary of the Jack Purcell Trainer.

[12] In June 2010, Casely-Hayford was selected by Esquire Magazine as a "Brilliant Brit" in their prediction of 75 young talents shaping 2010.

[13] In June 2011, Premier Model Management signed up Casely-Hayford as the newest addition to their Special Bookings board.