PERFECT BALANCE OF LIGHTWEIGHT WARMTH You shouldn’t have to move heaven and earth to sleep under the stars! That’s why we made the Cosmic Synthetic light in your pack and easy on your budget. This three-season superstar is constructed of fully recycled fabrics and fill—with a durable nylon shell, silky taffeta liner, and CirroLoft ECO insulation for lightweight, compressible warmth. A zippered stash pocket keeps track of keys and tech, and an extra-roomy footbox treats your hard-working dawgs with the utmost care..