90% Polyester,10% Nylon Blend . FABRIC. Sprints microfiber performance towel/car seat covers are made from a 90% polyester, 10% Nylon blend to absorb sweat and dry quickly. . FIT & SIZE: Each towel is 62.5" X 32"and f features a 10" x 32" pocket at the top to fit over a car seat headrest. beach chair or yoga mat. . FOLD, PACK or ROLL: bringing along your Sprints towel is easy because it rolls up to the size of a burrito and weighs approximately 1 pound. MACHINE WASHABLE: Sprints towel car seat covers are machine washable. Cold wash separately before first use! Tumble dry low.