The Cosmic Synthetic 0degree(s)F Sleeping Bag proves that staying warm under the stars doesn't have to break the bank. With CirroLoft insulation made from 100% fibers, this mummy bag delivers lightweight, compressible warmth that's easy to pack and perfect for even wintry adventures. Its durable nylon shell features a Pfas-free Dwr finish for added weather defense, while the silky taffeta liner ensures comfort after a long day on the trail. Designed for both warmth and functionality, the bag's contoured hood, full draft collar, and offset quilt construction work together to trap heat and prevent cold spots.