The Mens Over-the-calf Polypropylene Liner Sock is made of 100% polypropylene. When compared to other synthetic fibers like polyester, polypropylene displays a higher thermal insulating power without the bulk and weight associated with other kinds of cold-weather socks.. The high-tech fiber has excellent moisture-wicking action, non-allergenic and is easy to care for. Per two pair. Sizes: M(5 to 8-1/2), L(9-12), XL(13-15). Color: White. Approved for Cabelas waterproof, breathable footwear. Type: Liner Socks.
