Dri-FIT technology keeps your feet dry and comfy Ribbed arch band wraps the middle of your feet for support Reinforced toe and heel for durability No-show design for a low-profile look 98% polyester, 2% spandex Machine wash The Nike Everyday Lightweight Training No-Show Socks (6 Pairs) are imported. Made to keep you cool and comfortable so you can concentrate on what’s important, the Women's Nike Everyday Lightweight Training No-Show Socks (6 Pairs) combine a supportive arch band and breathable mesh to keep you dry and supported.