Trolect (TM) Galaxy Armband for Galaxy S4 Galaxy S5 (Black) Sweatproof and water resistant for full protection of your Galaxy Adjustable velcro strap enables great fit for most people, big or small. (fits arm circumference of approx 7-17 inches) Fits Samsung Galaxy S3 S4 and S5. Easily fit your Galaxy into the armband to allow immediate workout or exercise Made of strong neoprene and nylon while allowing full access to the touch screen and all of the phone's buttons and ports