Discover the ultimate balance of lightweight performance and reliable warmth with the Cosmic Synthetic 40 Sleeping Bag—your essential three-season backpacking sleep system. Tired of sacrificing comfort for pack weight on the trail? This mummy bag delivers compressible, weather-resistant warmth without breaking the bank or your back. Engineered with eco-conscious PFC-free DWR and our innovative CirroLoft synthetic insulation, it packs down small (just 15″x8.5″) yet traps heat efficiently down to 37°F comfort rating (3°C).
Hikers love the thoughtful details: a roomy footbox lets toes wiggle freely after long miles, while the ultra-soft 380T nylon taffeta shell feels luxurious against tired skin. Stash essentials securely in the interior pocket—perfect for phones, headlamps, or trail snacks—and trust the included compression sack to minimize bulk. Weighing only 2 lbs 6 oz (Regular size), it’s ideal for thru-hikers prioritizing ounce savings without compromising on cozy nights under the stars.
Choose Regular (fits up to 6′) or Long (6’6″) for your perfect fit—both feature identical temperature ratings (-3°C limit) and durable construction ready for spring through fall adventures. Stop compromising; grab your summit-worthy sleep solution today!
