When the acorns drop and the kids head out to collect, the Kids' Retro-X Vest is a good call. Not only is it warm and windproof, it also won't hinder the throwing motion once the chucking begins. The fluffy, quarter-inch pile, made of durable 100% polyester fleece (78% recycled), is lined with bluesign approved windproof nylon. Supplex nylon contrast reinforces the fleece-lined collar, front-zip binding and double-layer, patch handwarmer pockets. Hand-me-down ID label.