Product Details Our lightweight liners are naturally cool, wick away moisture and control odor to help keep you moving. Fabric & Care 69% polypropylene, 19% nylon, 10% X-Static nylon, 2% spandex. Machine wash and dry. Additional Features Polypropylene provides fast drying and wicking. Spandex offers an improved fit for fabric that moves with you and stays in place. X-Static nylon regulates heat and protects against odor. Smooth, flat toe seam avoids rubbing and irritation. USA, fabric imported. Return Policy Questions? Chat with an Expert