The Coleman Silverton 0 Sleeping Bag is a mummy-style bag that can help keep you warm in temperatures as low as 0 °F. It's constructed with lightweight Coletherm® hollow polyester insulation to help keep you warm from top to bottom. An adjustable hood and special quilting construction surround your head and body to help eliminate potential cold spots. The Thermolock™ draft tube blocks heat loss through the zipper, and a box-shaped foot gives you extra room to move your feet. A durable, ripstop-reinforced polyester cover will ensure you get to use this bag season after season.