Big Agnes Crosho UL Sleeping Bag 20 Degree Down

Meeting the demands of extreme alpine environments, the Big Agnes Croshu UL 20 Degree Sleeping Bag maintains fiery warmth when whipping winds and subzero temperatures threaten to leave you in full on survival mode. The bag's ultra light designation makes it an ideal choice for shaving weight, especially when you're hauling up a big wall or trekking across inhospitable terrain. 850 fill DownTek maximizes the bag's lofting power, trapping essential body heat when you're hunkering down on a portaledge for the night, and it uses a hydrophobic treatment that repels outside moisture from compromising its heat trapping loft. Insotect Flow Construction replaces the traditional baffles employed on many subzero bags. This Flow Optimized Architecture features Vertical Thermal Channels for rapid and equal distribution of body heat all without cold spots sapping your warmth inside. It's also contoured to your body's shape for a closer fit that locks in precious heat in extreme conditions, and it reduces the amount of materials needed in materials to result in a lighter bag on arduous adventures.