Cap by Carhartt WIP, For head-to-toe looks, Panelled crown, Eyelet vents, Flat peak, Adjustable strap. More than a century after Hamilton Carhartt established his Detroit business, Carhartt Work In Progress (WIP) launched in London, tailoring its workwear focus for a new audience. Collaborations with the likes of A.P.C. and Vans as well as inspiring figures in music and sport have since followed, making it a go-to for logo tees, hoodies and accessories.