Hyke & Byke Katahdin 0°F Cold Weather Mummy Sleeping Bag - 625 FP Synthetic Insulation, 4 Season Ultralight Backpacking & Hiking Sleeping Bag for Adults - Includes Compression Stuff Sack - Perfect for Winter Camping, Alpine Trekking & Outdoor Adventures

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 Katahdin 0 F See Details Eolus 0 F Add to Cart Snowmass 0 F Add to Cart Antero 0 F See Details Crestone 0 F See Details Customer Reviews 4.4 out of 5 stars 928 4.4 out of 5 stars 1,088 4.5 out of 5 stars 815 4.6 out of 5 stars 191 4.6 out of 5 stars 98 Price — $214.97$214.97 $179.97$179.97 — — Fill Power 625 FP 800 FP 650 FP 800 FP 650 FP Fill Type Adv. Synthetic ClusterLoft Hydrophobic 90/10 Goose Down Hydrophobic 80/20 Duck Down Hydrophobic 90/10 Goose Down Hydrophobic 80/20 Duck Down Pack Weight 3.27 / 3.54 / 3.91 lbs. 2.90 / 3.10 / 3.36 lbs. 3.23 / 3.38 / 3.56 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 100% Vegan Materials Ultralight for a 0 F mummy bag Warmest 4-season comfort 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 13.5" 7.5" x 12.5" 8" x 13" 7" x 10" 8" x 11" Meet the Katahdin 0 F Sleeping Bag Synthetic, 100% Vegan, No Compromises The premium Katahdin hydrophobic mummy sleeping bag uses advanced synthetic fibers instead of traditional down, yet sets a new benchmark in lightweight, compressible down-like fill materials. Our ClusterLoft synthetic is more durable than down and performs better in wet conditions for warm, 4-season comfort. Professionally designed for thru-hiking, backpacking, and bike-packing. Meet the Katahdin 0 F Sleeping Bag Hydrophic, Down-like Performance from a Synthetic ClusterLoft is our 100% Vegan synthetic fill. It's clusters of microfine fibers developed to simulate the compressibility and heat retention of down, resulting in a 625 fill power equivalence. More affordable than down, with increased resistance to matting. Our best bags for retaining heat in wet conditions. 625 FP Advanced Synthetic Tests warmer than premium 600 FP Goose Down. High loft, yet packs efficiently. Water-resistant & breathable. Lightweight & durable. 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 Katahdin sleeping bag down to just 11" long and 8" in diameter. Down-like Warmth and Performance from a Synthetic Typical synthetic insulation tests to be 300-400 FP (Fill Power), while our innovative ClusterLoft Advanced Synthetic tests to have a loft equivalent to 625 FP. This is a higher fill power than even many down sleeping bags on the market. Ultra-Lightweight & Ultra Compact Our ClusterLoft Advanced Synthetic insulation boasts a higher warmth-to-weight ratio than most other synthetic sleeping bags. And, because it's a synthetic, it's both more compressible and durable than down, giving you a high-end sleeping bag that is incredibly versatile. 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.