The Insulated Coach’s Jacket takes cues from iconic sportswear—namely, the lightweight, snap-front jackets worn by coaches since the 1950s. Referencing the vintage gear in our own archive, our team behind Proof took the classic silhouette and reengineered it in an ultra-durable, recycled taffeta shell with a lightweight, ultra-breathable lining. It’s rounded out with two handwarmer pockets, complete with a secure, hidden compartment on the right-hand side.