The Big Agnes Skeeter SL 20 Degree Sleeping Bag is a mummy shaped sleeping bag for backpacking and camping in the outdoors. Rated down to 20°F, this keeps you warm through the night. The new REM Pad Sleeve doesn't just clip to your bag to keep you on your sleeping pad, but also doubles as a storage sack. Talk about convenience. A 650 fill power DownTek Insulation keeps weight down and allows you to compress the bag down when you're hiking from camp to camp. Features of the Big Agnes Skeeter SL 20 Degree Sleeping Bag Traditional mummy shape allows for light weight and increased thermal value These bags offer a Big Agnes system option by using the included pad sleeve converter kit to secure your bag to the pad. The converter kit also doubles as a storage sack Vertically structured side walls integrating contoured flow baffles trap heat closer to the body Vaulted foot box creates more wiggle room for your feet Contoured hood baffles Cradle the head for a more comfortable Fit Oversized interior anti draft collar Superlight shell fabric with High tear strength DownTek water repellent down repels water while maintaining insulating value Low profile cord lock lets you un-cinch the hood with one hand Zipper garage Interior fabric loops for sleeping bag liners Exterior loops for hang drying or storage Mesh storage sack and nylon stuff sack Mate together left and right zip bags