The Marmot Hydrogen 30-Degree Down Sleeping Bag provides a comfortable night of sleep at an incredibly light weight. By using premium 850+ fill down and a super-light LightForce nylon shell, Marmot managed keep the Hydrogen's weight down to an impressive 1lb 5oz (regular). In addition to the air-like heft, the Hydrogen has full-wrap hood and insulated draft collar to seal out the cold and assure warmth even when the weather isn't.
Above 15 Deg F 