COMPATIBILITY: Fits iPhone 6/6S, and Samsung Galaxy S8 S7 S6 S5 S4 with an Otterbox, Lifeproof and other cases up to 6.3 x 3.5 x 1.25 inchesnPROTECTION: Strong durable case protects and keeps your phone safe from moisture while working outnUSE: Full touch-screen control - Features a headphone portnSTORAGE: Ample space for your device, cards, cash and keysnSIZE: Adjustable sizes from 9 to 14 inches - the included armband extender extends the maximum size up to 20 inchesnSMARTPHONE ARMBAND. The ideal armband for quick access to your phone and for listening to music while on the go. COMPATIBILITY - This armband will comfortably support devices up to 6.3 x 3.5 x 1.25 inches. This includes devices such as the Galaxy S8, S7, S6/S6 Edge, S5, S4 | iPhone 6 / 6S, 5/5S, Moto X, HTC One, LG G5 and many others with a case. This armband is also great for high intensity workouts, yoga or even casual walking or outdoor activities. DESIGN - This armband is made of durable materials which features a zipper storage compartment for your device and belongings like keys, cash, ids and cards. The screen is transparent and provides full touchscreen access. There is headphone access on the bottom. PROTECTION - The armband pouch and cover keeps your phone safe from impact while working out. SIZE - This armband is lightweight and fits arm sizes from 9 to 14 inches. For those of us with larger arms there is an armband extender included. The extender adds about 6 more inches for a total size of up to 20 inches. CARE - This armband can be safely hand washed and air dried after use.