New Balance zipper up Polyester fleece. All weather comfort, anti pilling, comfort stretch, & quilted overlay fabric for extra warmth without the weight!! with thumb holes, great for runners. Shell A: 100% polyester. Shell B: 100% polyester. Lining: 100% polyester. Filler: 100% polyester. Size Medium, very stretchy n very comfortable!! in excellent used conditions, No flaws. Retails for $110. Reasonable offers only please.