Patagonia Boys' Better Sweater Jacket (Little Big Kids) Machine Wash Consistsof a warm, polyester knitted fleece dyed with an environmentally friendly process thatreduces the use of harmful chemicals, energy and water Full length front zipper to manage warmth with wind flap Zippered security pocket on sleeve for storage Micropolyester jersey trim on cuffs, wind flap and hem Stiched seams at back for a durable wear