9.5 oz./yd² / 320 gsm, 3-Layer 96% polyester, 4% spandex bonded to polyester microfleece with inner membrane; 1000 mm waterproof rating; 96% polyester, 4% spandex bonded to 100% polyester microfleece; Wind- and water-resistant; Interior storm flap with chin guard; Open hem with dropped back bottom;