Description of Marmot Never Summer 0°F Regular Sleeping Bag Down warmth to temperatures as low as 0° F. assures warmth amidst the vagaries of shoulder-season weather, making the Never Summer an ideal choice for trips, climbs and treks when sub-freezing weather is emminent Features: 0°F | -18°C Weight: 3 lb 9 ozs / 1.616 kgs Main Material: Omni N-140 WR Main Material: Network N-130 AC Lining Material: Flashback P-220 WR Insulation Material: 600+ Fill Goose Down Size for stature: 183 cm Size on shoulder: 157 cm Size on hip: 147 cm Size on foot: 102 cm "Feely" Draw Cords Ease Nighttime Cord Fumbling Classic Trapezoidal Foot Box For More Foot Room Down-filled Collar with Easy Access Draw Cord Ground-Level Side Seams Eliminates Drafts Heat Bump Draft Tube Hood Draw Cord Positioned for Easy Access Locking Zippers Keep the Bag from Opening Up in the Middle of the Night Nautilus 6-Baffle Hood 6 Chambers of Down Around Head for Better Down Control and Fit, Hood Cord is Positioned for Easy Access Stash Pocket For Nighttime Essentials Such as a Watch or Energy Bar Stretch Tricot Baffles Provide Ultimate Strength, Durability and Bag Life Stuff and Storage Sack Included Store and Pack Just Like Your Sleeping Bag Two Hang Loops On the Outside of Foot Box for Airing Out Your Bag Two-Way Zipper Sliders For Venting and Mating of Bags. Reversible Slider Tabs for Easy Use Inside or OUtside of Bag Updated Collar Construction Velcro®-free Face Muff Keeps the Drawcord and Zipper Away from Your Face Zipper Guards Help Repel Biting Zipper Coils