Holden Men's Sherpa Zip Up 52% POLY, 48% ACRYLIC Imported Fabrics: Sherpa Fleece: This blend of polyester and acrylic Sherpa fleece is the perfect layering solution on or off the mountain Eco-friendlier features: Ships in Biodegradable bag, Recycled poly lining Sherpa Fleece: This blend of polyester and acrylic Sherpa fleece is the perfect layering solution on or off the mountain It will keep you warm and move moisture away from your body It will keep you warm and move moisture away from your body