What Our Gearhead(R) Experts Are Saying:"This bag strikes the perfect balance of comfort, weight, and durability. The roomy foot box is a game-changer for tired feet, and the eco-friendly insulation keeps me warm without adding bulk. Plus, it packs down small, making it easy to bring along for all my three-season trips."The Kelty Cosmic 40degF Sleeping Bag is our ticket to restful nights under the stars. Engineered for three-season comfort, this mummy-style bag is crafted with recycled CirroLoft ECO insulation, delivering lightweight, compressible warmth that doesn't weigh us down. Its buttery-soft recycled nylon shell is treated for eco-friendly water resistance, and the silky taffeta liner adds a touch of luxury to every night in the backcountry. The bag features an offset quilt construction to eliminate cold spots, a contoured hood for a snug fit, and an expanded foot box for extra room to stretch and wiggle our toes. Thoughtful details like a zippered internal stash pocket and anti-snag sliders ensure convenience on the trail.