Marmot Atom 40F Sleeping Bag (Regular)

The Atom 40�F Sleeping Bag is Marmot's lightest bag. The perfect bag to take with you on any summer backpacking/climbing trip with its warmth to weight ratio being remarkable. The Atom also has a smooth feel like you are sleeping on silk sheets, which can definately help you on that summit push the next day. Filled with certified 850+ Fill Goose Down, the best down in the market; independently tested and certified by International Down and Feather Laboratory in Salt Lake City, Utah. Retested at fill time in Santa Rosa to ensure 850+ fill power every time. Sewn through baffles makes the overall weight lighter and a side blocked below the end of the zipper keeps the down evenly distributed eliminating any cold spots that could occur.