Marmot's Hydrogen sleeping bag is the epitomy of any ultralight backpacker's sleeping bag. Delivering plenty of warmth for all but the coldest 3 season nights, the Hydrogen is packed with 850+ Goose Down insulation kept in check by Pertex© Microlight® Shell and Lining for a knockout flyweight of 1 lb 8 oz

Marmot offers the Never Winter 30 as ideal sleeping bag that handles most mild weather backpacking trips, car camping and river trips. Stuffed with 600+ fill power goose down insulation, the Never Winter 30 offers compact storage in your pack, but excellent lofting that only goose down can seem to provide. 2012 offers an updated liner fabric in addition to extra baffle height and shape improvements to better preserve loft and overall warmth.