Product description:

This lightweight, comfortable armband, originally designed for early Android smartphones, fits beautifully on models such as iPhone 5/5s/5c in a slim case, and Motorola Droid Mini, Droid Razr M and other devices and/or cases 4.5"-5" in length. 

The cushioning neoprene armband is stable and secure so it will not bounce or slide down the arm. Other features include a clear, protective window cover with full navigational control, a flap to securely store and manage the earphone cord and reflective logo. The armband is washable and adjusts from 9" - 17". For larger sizes an Extender is available, adding about 6.5".

Maximum size: Length: 5" - Circumference (2X width plus 2X depth): up to 6.5".

Some iPhone 5/5s/5c slim cases that fit: Belkin iPhone 5/5s Grip Candy Case, Incipio iPhone 5/5s DualPro Case, Speck iPhone 5/5s CandyShell Grip Case, and Spigen iPhone 5/5s Slim Armor Case.

Fits Motorola Droid Mini and Droid Razr M; Blackberry Q10; HTC Desire HD 4G, Droid Incredible 2, Droid Incredible 4G LTE, Droid Incredible S, Inspire 4G, ThunderBolt 4G; Motorola Atrix 2; Samsung Fascinate (Galaxy S) Verizon, Samsung Galaxy S (i9000 S), Galaxy S II (i9100), Galaxy S II AT&T, and Galaxy S4 Mini.

Not recommended for use with devices using a protective film cover because the film may stick to the armband's window cover.