Perfect for crisp, clear days on the trail or playground, the boys' Patagonia Lightweight Synchilla Snap-T fleece pullover is made from a warm, cozy fleece that makes it a perennial favorite. Color in Ramble Red Light yet warm double-face polyester fleece is 85% recycled and bluesign® approved Classic styling includes a 4-snap nylon placket, stand-up collar and snap chest pocket with Supplex® nylon flap Y-joint sleeves free up arm movement Spandex trim on sleeve cuffs and hem seals in warmth.