Ultralight fabric, high-quality down, & a minimalist design come together in the Marmot Lithium 0 Degree Down Sleeping Bag. Suitable for mountaineers & backpackers adventuring in temps down to 0deg F, its lofty 800-fill-power-down insulation & water-resistant Down Defender treatment stays warm & dry. Fold-down second zipper provides added ventilation and easy access Main zipper anti-snag slider reduces snagging Anatomically designed footbox with wrap-around construction increases warmth Smooth-curved baffles reduce down shifting Nautilus multi-baffle hood limits heat loss Filled and finished in Rohnert park, California En tested Full length locking YKK two way zipper with zip-guard slider Down defender to improve water-resistance in wet conditions Nautilus multi-baffle hood Internal stash pocket Snagless insulated draft tube Hood draw cord Two way zipper sliders Zipper garage Stretch tricot baffles Two hang loops Stuff and storage sack included Lifetime warranty against manufacturer defects