Letâ€™s face it- when is backpacking ever actually easy? While we canâ€™t take the pain out of your elevation gain, we CAN put you on the trail with the new Cosmic Synthetic 20 Sleeping Bag. Itâ€™s a fully equipped mummy bag thatâ€™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 youâ€™ll be thinking less about weary hiker feet and daydreaming about more QT in the outdoors.