The North Face's One Duo sleeping back features a tri-layer design that you can add and take away layers depending on the weather you experience and 800 fill power. Down insulation to keep you warm. 800 fill power recycled down insulation.
Rectangular shape for extra comfort and easily fits two people. Wraparound zipper for venting and mobility. Large fitted hood accommodates pillows. Anti-compression layer on back made from synthetic insulation. Top layer insulation rate at 40°F.
Mid layer insulation rated at 20°F and for adverse conditions. Both layers combined for 5°F for maximum versatility. Down layer can be used on its own for lounging.