Come and see our amazing products. The armband is 7" * 3.7" for smartphone up to 6.7". Elastic and Adjustable Arm Strap: The elastic band makes it more adaptable,adjustable elastic band suitable for most people.For a relaxed fit there is cushion on both sides of the arm. This running armband with double deck and double zipper exercise pouch provides large and safe space for your cellphone as well as your house or car keys, ID/credit cards, cash, earphone, iPodd & other accessories whilst doing outdoor activities. Never worry about losing them. Pls confirm with us about the packing info, stock color and exact production time before placing your order