Zipper Design:This zipper sports wristband is not only a wrist band,but also a nimi wallet,comfortable to wear,you can put coins,keys,headphones in a portable wrist wallet.When you are out for running, you dont have to worry about not having space to store small items such as keys. Suitable for Multiple Sports:Sport wristband with zipper is very light.It is very suitable for gym,basketball,football,tennis,training,running,walking,yoga,cycling,badminton,baseball and all other sports activities aimed at keeping healthy. Great Absorption:The sponge tape absorbs good water and can dry quickly.When exercising,you can use a absorbent sweatbands to wipe sweat from your face,avoid contact with eyes and concentrate on training. Elasticity & Washing Resistance:The striped sports wrist band comes in one size only,right rubber band is suitable for most people.We recommend that you wash the sports belt by hand to avoid discoloration or loss of elasticity. Premium Material:The zipper wrist pouch is made of 80% cotton, 15% latex yarn and 5% polypropylene fiber.It is soft,elastic,water-absorbent,lightweight,durable,not easily deformed and has high tensile strength.