Fill Power Goose Down keeps you warm in the toughest of conditions. Lightweight and compressible, the Maxon is an easy traveling companion. A durable 100% polyester plain weave with 15,000mm waterproof/breathable 2-way stretch fabric and AquaGuard zippers are incredibly durable and keep the elements at bay. Adjustable, gusseted cuffs with inner stretch liners, removable hood.