100% Cotton Zipper closure Machine Wash Thick and Med-Thick style:Made of 95% cotton and 5% spandex;Thin style:60%cotton/35%polyester/5%spandex Zipper fly closure,elastic waist and drawstring Waistband 2 Front slash zip pockets Cotton jersey has a soft, lightweight feel.Machine wash The product has been upgraded, but there is still a small amount of the old version in stock, please be aware