Dri-FIT fabric wicks away moisture to keep feet dry and comfortable. Rib hem. Left/right-specific for enhanced fit. Half-cushion terry foot for comfort and shock absorption. Reinforced heel and toe for enhanced durability in high-wear areas. Fabric: Dri-FIT 40% cotton/30% polyester/28% nylon/2% spandex. White/(flint Grey), Style - Color # SX4206-101. Machine wash. Made in U.S.A.