Features: 96% Recycled Sleeping Bags Climashield HL Green 100% recycled synthetic insulation 100% recycled shell materials Recycled components: Cord, 50% PLA (corn starch plastic) cord lock, mesh storage sack, interior liner loops Recycled mesh storage sack & nylon stuff sack included Integrated pad sleeve. Never roll off your pad again No-draft collar seals around neck to keep cold air from sneaking in No-draft zipper tube insulates along the length of the zipper No-draft wedge insulates the connection between the bag and pad. YKK #8 zipper. Mate together any of our left and right zip bags with the same size zipper Rectangular shape offers more room in foot box and shoulders Built in pillow pocket holds a fleece or Big Agnes Pillow Shell and bottom fabric: 100% recycled polyester diamond rip-stop Lining: 100% recycled polyester taffeta Insulation: Climashield HL Green synthetic fill made from 100% recycled materials A-Shingo: A patented, shingle construction that utilizes an anchor system to create more trapped air space and maximize heat containment by eliminating gapping.