The Never Winter is an ideal summer bag for camping and river trips, but it also has enough water-resistant 650-fill down insulation to keep you warm and protected when frost is in the air. 20d 100% Nylon Mini Rip stop – 30d 100% Nylon DWR 1.18 oz. / yd. Fold-down second zipper provides added ventilation and easy access, main zipper anti-snag slider reduces snagging. Anatomical wrap-around foot box increases insulation and room for your feet, more warmth and comfort. Certified 650 fill power down with down defender to improve water-resistance in wet conditions. En tested. Nautilus multi-baffle hood. Down-filled collar with easy access draw cord. Full length locking YKK two way zipper with draft tube to reduce heat loss. Internal stash pocket and heater pocket in foot box. Ground-level side seams. Hood draw cord. Zipper garage. Stretch tricot baffles. Two hang loops. Stuff and storage sack included. Lining: 20d 100% Nylon Plain Weave. Weight: 1lbs 14oz (850g). Bag temperature (°C): -1° C. Bag temperature (°F): 30° F. Insulation: 650 Fill Power Down with Down Defender. Pack volume: 286.8ci ” 4.7 liters. Zipper position: LZ, RZ. Style number: 29830.