Outdoor Gear That Eliminates Poverty Hyke & Byke was founded on the principle of extending the wilderness to everyone through providing quality products, that we ourselves use, affordably. Ultralight backpacking, bouldering, peak bagging, and camping are hobbies, a mindset, and a way of life that we want to share with everyone. Choose the Right Zero-Degree Sleeping Bag for You Snowmass 0 F Buying Options Eolus 0 F Add to Cart Katahdin 0 F Add to Cart Antero 0 F Buying Options Crestone 0 F Buying Options Customer Reviews 4.4 out of 5 stars 831 4.4 out of 5 stars 1,147 4.5 out of 5 stars 980 4.4 out of 5 stars 204 4.4 out of 5 stars 81 Price — $125.37$125.37 $71.26$71.26 — — Fill Power 650 FP 800 FP 625 FP 800 FP 650 FP Fill Type Hydrophobic 80/20 Duck Down Hydrophobic 90/10 Goose Down Adv. Synthetic ClusterLoft Hydrophobic 90/10 Goose Down Hydrophobic 80/20 Duck Down Pack Weight 3.23 / 3.38 / 3.56 lbs. 2.90 / 3.10 / 3.36 lbs. 3.27 / 3.54 / 3.91 lbs. 3.45 / 3.71 lbs. 3.58 / 3.83 lbs. Fabric Toughness 400T, 20D Ripstop Nylon 400T, 20D Ripstop Nylon 400T, 20D Ripstop Nylon 400T, 20D Ripstop Nylon 400T, 20D Ripstop Nylon Shell Base Adv. Synthetic ClusterLoft Adv. Synthetic ClusterLoft Adv. Synthetic ClusterLoft Adv. Synthetic ClusterLoft Adv. Synthetic ClusterLoft Special Features Warmest 4-season comfort Ultralight for a 0 F mummy bag 100% Vegan Materials Hammock-compatible Hammock-compatible Comfort Temperature 30F / -1C 30F / -1C 30F / -1C 30F / -1C 30F / -1C Comfort Limit 15F / -10C 15F / -10C 15F / -10C 15F / -10C 15F / -10C Survival Limit 0F / -17C 0F / -17C 0F / -17C 0F / -17C 0F / -17C Compressed Pack Size 8" x 13" 7.5" x 12.5" 8" x 13.5" 7" x 10" 8" x 11" Meet the Snowmass 0 F Sleeping Bag A Toasty Warm Four-Season Bag Keep warm when when temperatures drop below freezing with our Snowmass 0 F mummy-style sleeping bag. This 80/20 duck down bag boasts excellent weight-to-warmth ratio that saves space and weight. Professionally designed for thru-hiking, backpacking, and bike-packing. Want 25% less weight and the same warmth? Check out our Eolus 0 F goose down bag with 800 FP! The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Meet the Snowmass 0 F Sleeping Bag Save Space & Shave Weight Ultralight quality hydrophobic duck down filling is distributed among horizontal baffles with side channels which allow you to redistribute fill to where you need it most. Duck down features a high warmth-to-weight ratio for the most extreme cold climes. Stay Toasty! Our 650 Fill Power duck down features a high warmth-to-weight ratio, and the tough outer shell is treated with hydrophobic DWR coating. Secured Internal Gear Pocket Handy internal gear pocket with secure hook & loop closure to stash cell phone, mini flashlight, headphones, & other amenities. YKK Anti-Snag Zipper YKK zippers are manufactured with high standards and thorough quality control processes. Zips tight and reduces snag during regular use. Included Compression Sack Lightweight but tough 400T, 20D ripstop nylon. Compress your Snowmass sleeping bag down to just 13" long and 8" in diameter. Perfect 4-Season Cold Weather Sleeping Bag Warm but ultralight, the Snowmass bag weighs just 3.38 lbs. at Regular size but has powerful insulation for cold climates and below-freezing conditions. How does it work? Naturally hydrophobic down feathers create "loft" that traps heat and keeps you warm. Stay Warm, Save Space, Shave Weight Naturally hydrophobic 80/20 duck down fill packs a powerful weight-to-warmth ratio and is filled into horizontal baffles with an ingenious side channel that allows you to redistribute fill between baffles to where you need it most. Tighten interior draw strings to customize a snug and toasty fit. USA Based Company Gear That Gives Hyke & Byke LLC is committed to eliminating poverty to through Kiva sponsors and is a member of the Conservation Alliance. Designed for Adventure and Designed in the USA, our mission is to create honest, top-quality, and innovative gear for you to live your adventures.