Built with premium 800-fill goose down the GoLite Venture 20° Sleeping Bag for Men offers superior warmth unmatched comfort and a lite-weight compressible construction that delivers a male-specific fit in a 3-season bag. The waterproof Pertex® Endurance Arid Zones™ at the head and foot of the bag protect against condensation so your down bag will keep you warm even in wetter climates. The wider mummy shape of the venture provides more wiggle room and the full-length side zippers allow for bags to zip together for your snuggling enjoyment.