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Kelty 2024 Cosmic 20 Down Sleeping Bag: warm, comfortable, and eco-friendly. Trapezoidal baffle construction enhances warmth, while 550 fill-down insulation provides comfort to -7°C. Semi-rectangular shape and expanded foot box offer extra space.
Kelty says:
Remember the trapezoid from high school geometry? Turns out, this funky ol' shape is ideal for helping sleeping bags retain heat. Our trapezoidal baffle construction is just one of the reasons the Cosmic Down is still our favorite three-season superstar. We also love the expanded natural-fit footbox for happier feet, zippered stash pocket and fully recycled fabrics and PFAS-free DWR treatment. The Cosmic Down is the total package.
Our Verdict
The Kelty 2024 Cosmic 20 Down Sleeping Bag is a standout choice for three-season adventures, thanks to its blend of warmth, comfort, and practical features. Its trapezoidal baffle construction enhances thermal efficiency, while 550 fill-down insulation provides impressive warmth down to -7°C.
The bag’s semi-rectangular shape and expanded foot box offer extra space and comfort, and using fully recycled fabrics with PFAS-free DWR treatment adds an eco-friendly touch. Practical features include a zippered internal pocket, draft collar, and dual-locking sliders for adjustable ventilation.
Weighing between 1019 and 1258 grams, depending on size, it remains lightweight for its performance. The included stuff sack makes packing easy. Overall, the Cosmic 20 combines innovation and practicality, making it a solid choice for any three-season camper.
- Reviewed by Basecamp Gear
Features
- Trapezoidal baffle construction provides enhanced thermal efficiency
- Lofty, lightweight and warm 550 Fill Down
- Buttery-soft and durable, fully-recycled shell and liner fabrics with PFAS-free DWR
- Zippered internal stash pocket keeps your favorite devices close at hand
- Full draft tube and collar retain heat and enhance comfort
- Quad-stitch anti-snag zipper makes getting in and out easy
- Dual locking sliders for venting versatility
- Expanded, natural fit footbox = more room to wiggle your toes
- Stuff sack included, for quick and easy departures
Specifications
- Temperature Rating: 20°F / -7°C
- Bag Shape: Semi-Rectangular
Short
- Weight: 1019g
- Fits to: 5' 6" / 168 cm
- Fill weight: 14.6 oz. / 415 g
- Stuff Sack Size: 7" x 13" / 18 x 33 cm
- Length: 72 in / 183 cm
- Shoulder Circumference: 58 in / 147 cm
- Hip Circumference: 56 in / 142 cm
- Foot Circumference: 43 in / 109 cm
Regular
- Weight: 1117g
- Fits to: 6' 0" / 183 cm
- Fill weight: 16.4 oz. / 464 g
- Stuff Sack Size: 8" x 13" / 20 x 33 cm
- Length: 78 in / 199 cm
- Shoulder Circumference: 62 in / 158 cm
- Hip Circumference: 58 in / 147 cm
- Foot Circumference: 46 in / 117 cm
Long
- Weight: 1258g
- Fits to: 6' 6" / 198 cm
- Fill weight: 18.8 oz. / 533 g
- Stuff Sack Size: 8" x 14" / 20 x 36 cm
- Length: 84 in / 214 cm
- Shoulder Circumference: 64 in / 163 cm
- Hip Circumference: 60 in / 152 cm
- Foot Circumference: 52 in / 131 cm
Material & Construction
- Insulation:550 Fill Down
- Fabric Primary/Body: Recycled 20D Nylon Taffeta
- Fabric Secondary: Recycled 50D Polyester Taffeta
