Kelty Cosmic Synthetic 0 Degree Sleeping Bag

Experience dependable warmth and rugged comfort with the Kelty Cosmic Synthetic 0° Sleeping Bag—your go-to choice for cold weather camping, backpacking, and outdoor adventures. Designed for temperatures down to 0°F, this premium synthetic-insulated sleeping bag delivers exceptional performance in wet, snowy, or unpredictable conditions without the premium price tag of down fill.

Built with high-loft synthetic insulation and a durable ripstop shell, the Kelty Cosmic Synthetic 0° keeps you warm even when damp, making it ideal for backpackers, car campers, mountaineers, and winter gear enthusiasts. The thermo-gilled hood and draft tube trap heat where you need it most, while ergonomic design details like the two-way zipper and internal stash pocket add convenience and comfort for nights on the trail.

Whether you’re tackling shoulder season hikes, late-fall trips, or snowy backcountry excursions, the Kelty Cosmic Synthetic 0° Sleeping Bag delivers reliable warmth, all-weather durability, and packable convenience—making it an essential piece of cold-climate gear for outdoor lovers who refuse to let the cold stop them.

Features: 

• Cozy, compressible and lightweight mummy is updated with a roomier fit
• Buttery-soft recycled 20D nylon shell with PFAS-Free DWR
• Silky, fine-denier CirroLoft ECO synthetic insulation is made from 100% recycled fibers
• Offset quilt construction to prevent pesky cold spots
• Zippered internal stash pocket provides easy access to your tech and smaller items
• Dual locking sliders with full-length draft tube and anti-snag treatment for venting versatility
• Full draft collar to retain heat
• Contoured hood with insulated upper tube fits naturally for more comfort
• Expanded, natural-fit footbox = more room to wiggle your toes
• Compression stuff sack for quick + easy departures

Materials: 

Insulation: Recycled Cirroloft™ Eco

Shell material: Recycled 20D Polyester Taffeta

Liner material: Recycled 50D Polyester Taffeta

Specs: 

Regular

• Temp Rating: 0° / -18°C
• Fits to: 6’ / 183 cm
• Length: 78.3” / 199 cm
• Fill weight: 61.2 oz. / 1.74 kg
• Total weight: 4 lb. 12 oz. / 2.18 kg
• Stuffed size: 11.5" x 19" / 29.2 x 48.3 cm

Long

• Temp Rating: 0° / -18°C
• Fits to: 6’ 6" / 198 cm
• Length: 84.3” / 214 cm
• Fill weight: 67.8 oz. / 1.92 kg
• Total weight: 5 lb. 3 oz. / 2.38 kg
• Stuffed size: 11.5" x 19" / 29.2 x 48.3 cm