This was part of the Kickstarter Thylacine campaign that just wrapped up. More details at http://kammok.com/products/fireb... The Firebelly is 750 down fill trail quilt rated to 30 degrees F that fuses luxurious comfort & technical back country functionality, keeping you incredibly warm at a 'feather-light' weight. Made from Atmos™, a proprietary ripstop nylon fabric made from high tenacity yarns and blends unprecedented durability with thermal reflective properties. Atmos™ amplifies retention of your body heat, maintaining a comfortable equilibrium. The Firebelly is also constructed with Insotect Flow™ technology which incorporates Flowgates™ which help eliminate cold spots while maintaining unmatched high loft baffle channels. It also doubles as a minimalist sleeping bag by using the drawcords to create a footbox.