Features of Marmot Pendleton Sleeping Bag Certified 650 fill power down with Down Defender to improve water-resistance in wet conditions Dual side zippers for easy access Extended zipper flaps to provide extra blanket-like coverage when unzipped Footbox zipper opens when you want extra space and closes for extra warmth Recycled Shell: and lining fabrics for a sustainable choice Cinchable draft collar to prevent heat loss ISO tested for reliable temperature rating Stuff and storage sack included Fabric Details Lining: 100% Recycled Nylon Taffeta Shell: 100% Recycled Nylon Ripstop 100% Recycled Nylon Ripstop Insulation: 650 FP Duck Down Man Body Synthetic Sheet Extended Draft Tubes