The Gobi Liner from Wigwam is not just a sock, but designed to work in combination with a sock to create a soothing second skin to keep feet dry and blister free. Constructed of Polypropylene, this Wonder-Wick Moisture Control Sysstem keeps your feet dry and comfortable. Extremely light-weight. Matched with a great Wigwam sock, this combo is unbeatable. Size large fits women's shoe sizes 10 thru 13, men's shoe sizes 9 thru 12. Color: white.