Kelty Cosmic 20 Degree Long Mummy Sleeping Bag - Remember the trapezoid from 10th-grade geometry? Turns out， this funky ol’ shape is ideal for helping sleeping bag baffles retain heat. The trapezoidal baffle construction improves on Kelty's best-selling Cosmic 20 sleeping bag—and it’s just one of the reasons the Kelty Cosmic Down 20 is still their favorite three-season superstar. Kelty also loves the natural-fit foot box for happier feet， and a PFC-free water-repellent coating for a healthier environment.

Features

• Innovative trapezoidal baffle construction = thermal efficiency
• Lightweight and warm 550 fill down
• Environmental and health friendly C0 and PFC-free DWR fabrics
• Zippered internal stash pocket for headlamp， cell phone or actual… stash
• Buttery-soft and durable 20D Nylon shell fabric
• Zipper draft tube with anti-snag zipper design makes it easy to get in and out
• Dual slider for ventilation with locking zippers
• Natural fit spacious footbox = more room to wiggle your toes
• Comes with stuff sack for quick departures