The Men's Polartec Power Dry Liner from Kokatat boasts 65% recycled material, Odor resistance and a light, comfortable insulating layer that will keep you warm and cozy on those cold days. The Polartec Power Dry four way stretch one piece liner is made from 65% recycled material and incorporates unique silver yarns that provide permanent odor protection. Front zip entry with an internal zip flap and chin guard provide easy access and a extra measure of comfort. A front relief fly is oh so convenient. Articulated for comfort and unrestricted movement. Flat stitched seams don't chafe and make a nice looking piece.