The 1lb 1oz MontBell U.L. Super Stretch Hugger 7 50-Degree Down Sleeping Bags super light weight makes it an ideal choice for your next bike tour or summer thru-hiking trip. This mummy bags ultralight 15D Airlight nylon contains high-loft 800-fill down for amazingly low bulk. Stretch seams help this summer sleeping bag hug your body and eliminate warmth-stealing dead air spots while Multi-Box baffle construction eliminates cold spots. When weight is absolutely paramount, cut it to one pound with the Super Stretch Hugger Sleeping Bag .