Teton Altos 20F Degree Mummy Sleeping Bag - Enjoy all the warmth of a snug mummy bag fit but with none of the claustrophobia. This cozy Altos mummy sleeping bag is innovatively measured above and beyond the industry standard to give you maximum mobility while maintaining the contoured fit for heat preservation. Roll over, stretch out, Sleep easy. Features Wider at shoulders Longer at feet Fitted for warmth Perfect for backpackers 3-piece ultra-puff hood Soft, downproof nylon Water-resistant shell Interior storage pocket Two-way anti-snag zippers Full-length zipper draft tubes Teton Lifetime Warranty