Features of Marmot CWM -40 Degree Sleeping Bag Filled and finished in Rohnert Park, CA, with certified 800 fill power goose down Pertex Shield fabric with waterproof, windproof, breathable membrane center zipper for easy access Dual side zippers for ventilation and to allow arm use Multiple internal storage pockets to organize gear you sleep with Multi-baffle, wrap-around foot box increases warmth Reinforced footbox lining Internal hood and draft collar cord cinching for adjusting without letting heat out Down-filled draft tubes for uniform Insulation Recycled material Fabric Details Pertex Quantum 100% Recycled Nylon Plain weave, Pertex Shield 100% Recycled Nylon Ripstop, Pertex Shield 100% Recycled Nylon Ripstop