800-fill DriDown mummy is warm and lightweight
The Cosmic Ultra 0 is the ultimate in a lightweight mummy. Kelty has taken their top-selling Cosmic Bag and added an 800 fill DriDown version, with all the perks of the original Cosmic. The trapezoidal baffle construction is ideal for retaining heat—and it’s just one of the reasons the Cosmic is still a favorite three-season superstar. You'll also love the natural-fit foot box for happier feet, and a PFC-free water-repellent coating for a healthier environment.