Exterior: 13.5 oz, 100% polyester with mechanical stretch bonded with 100% polyester micro fleece. 1000 mm/1000 g/m2 waterproof/breathability rating. Heathers are 92/8 polyester/spandex. Full length inner storm flap with comfort chin guard. Jacket is bonded, anti-pill, wind and water resistant, has a YKK zipper.