Product Details: Material:97.8% polyester, 2.2% spandex Weight: 21g/pc Head circumference:20.8-24in Arcweg,a brand dedicated to outdoor sports products.Bringing the best products to customers has always been the persistent goal of Arcweg. The Sport Headbands are selected from professional manufacturer that has good production techniques and fashionable designs.Each product's raw material procurement and production process are strictly quality control. 1.This sport headband is suitable is made of 97.8% polyester, 2.2% spandex.Comfortable and soft wearing feeling. 2.The head wrap for running is with good elastic. 3.The ear warmer is suitable for a variety of occasions, such as cycling, motorcycle, skating, daily life,etc,.