Kelty Cosmic Synthetic Fill 20 Degree Backpacking Sleeping Bag – Compression Straps, Stuff Sack Included

Amazing product. Kept me warm and comfortable in the mountains in >30°. Strong material, no tears on sleeping bag. Didn’t feel claustrophobic. A bit bigger and bulkier than I would prefer but still worked amazing.

Realmente se que sería un muy buen producto, y lo es. Súper calientito, se puede hacer lo más pequeño que logres hacerlo, las correas ayudan bastante, y el diseño esta súper padre

Review: Kelty Cosmic Synthetic Fill 20 Degree Sleeping Bag The Kelty Cosmic 20 Degree Sleeping Bag is a great option for campers and backpackers needing warmth, portability, and versatility for cooler nights. Pros: • Warmth: Rated for 20°F and perfect for colder conditions. Works great in 35–40°F weather with fleece pants and a shirt. • Lightweight & Compact: Easy to pack with included compression straps and stuff sack. • Durable Material: Synthetic fill is resilient and handles damp conditions well. • Convenient Zipper Design: Allows you to unzip the bottom to let your legs out when it gets too warm—a very handy feature. Cons: • Tight Fit: May feel snug for larger users. • Less Breathable: Can feel warm and stuffy in milder weather without ventilation. Verdict: A reliable and versatile sleeping bag for backpackers, especially for temperatures around 35–40°F. The leg-vent feature is a thoughtful touch for added comfort. Rating: 4.5/5

I was initially hesitant to get a non-down sleeping system, but was desperate for quick delivery. Previous synthetic filling- especially polyester- had me sweating, too hot, or not warm enough. This was a FANTASTIC purchase, and it kept me cool during a heatwave in Shenandoah. The nights when the temp plummeted, I was incredibly comfortable and the fabric was buttery soft. I love the hood! My dog begged to sleep on it when I wasn't using it. Kelty once again delivers.

Good bag, keeps you worm in cooler ~30 degree Fahrenheit temperatures, as long as the zipper is underneath you. There is a noticeable draft from the zipper if it is exposed to the cold air. Even with the extra lining material meant to prevent the zipper draft, cold drafts still manage to seep in.