Kelty Cosmic Sleeping Bag

The ISO Limit rating of 22°F indicates the temperature at which a standard man can sleep comfortably in a curled position without feeling cold. For most people, this bag is best suited for three-season use where temperatures stay above freezing, though you may want a liner if you plan to push it toward its lower limit.

While synthetic insulation is generally bulkier than down, the CirroLoft material used here is designed to be highly compressible. It comes with a compression stuff sack that helps you shrink the bag down to a manageable size for your pack, though it will still take up more space than a premium down bag of the same rating.

Yes, the bag features a natural-fit, spacious footbox that gives your feet extra room to move, which helps prevent that restrictive feeling common in tighter mummy bags. However, as a mummy-style bag, it will still have a more tapered fit through the torso compared to a rectangular bag.

The PFC-free DWR finish helps the shell shed light moisture, such as condensation inside a tent or light mist. It is not waterproof, so you should still use a ground cloth or tent footprint to keep the bag dry from ground moisture.

The Cosmic Synthetic 20 is designed to accommodate users up to 78 inches, or 6'6" tall. If you are near that height, you will have a snug fit, but the design is intended to provide enough length for full coverage.

The internal stash pocket is positioned to keep small essentials like your headlamp, phone, or earplugs within reach. It prevents you from having to dig around the bottom of your bag in the dark when you need something quickly.