Designed to keep you sweat-free while tearing it up on the field, these arm bands feature sweat-wicking material and incredible elasticity for any size arm. Benefits Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable. Flat seams feel smooth against your skin. Product Details 53% polyester/25% nylon/22% rubber 9” to 21” elasticity stretch Hand wash