Kelty Cosmic Synthetic 0 Degree Backpacking Sleeping Bag Long -Brick Red Let’s face it – when is backpacking ever actually easy? While we can’t take the pain out of your elevation gain, we CAN put you on the trail with the new Cosmic Synthetic 0 Sleeping Bag. It’s a fully equipped mummy bag that’s light on weight and your wallet. The Cosmic synthetic is a three-season superstar built with our new CirroLoft synthetic insulation for lightweight, compressible warmth. Soft-as-silk nylon taffeta fabric means you’ll be thinking less about weary hiker feet and daydreaming about more QT in the outdoors. / 2.23 kg Stuffed Size: 17″ x 11″ / 43 x 28 cm Insulation: CirroLoft Shell material: 380T Nylon Taffeta Liner material: 50D 300T Poly Taffeta.