Marmot Never Winter Sleeping Bag - Unisex\'s 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. Fit Chart: Unisex\'s Sleeping Bags Short - Fits Up To: 5 feet 6 inches /  167.64 cm Regular - Fits Up To: 6 feet 0 inches /  182.88 cm Long - Fits Up To: 6 feet 6 inches /  198.12 cm Features Fold-Down Second Zipper Provides added Ventilation and Easy Access, Main Zipper Anti-Snag Slider reduces Snagging Anatomical Wrap-Around Footbox 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 Footbox Ground-Level Side Seams Hood Draw Cord Zipper Garage Stretch Tricot Baffles Two Hang Loops Stuff and Storage Sack Included Main materials - 20d 100% Nylon Mini Ripstop | 30d 100% Nylon DWR 1.18 oz/yd Bag temperature(°C) ; -1° C Bag temperature(°F) : 30° F Insulation - 650 Fill Power Down with Down Defender Lining - 20d 100% Nylon Plain Weave Regular Pack volume - 286.8ci » 4.7 liters Regular Weight - 1lbs 14oz (850g) Long Pack volume - 305.1ci » 5 liters Long Weight - 2lbs 0.1oz (910g)