Water-repellent, tear- and abrasion-resistant 420-denier outershell with 9 oz. polyester fiberfill. Fully lined. Heavy duty brass zippers with snap flaps and stress points are reinforced with brass rivets. Optional hood (6308) snaps on. Comfort rating to -50°F. Sizing Instructions: For the most accurate fit, take your measurements over the base layer of clothing you intend to wear with this RefrigiWear gear (such as thermal underwear, jeans or a sweatshirt) and refer to the size chart for this product.