i2 Gear Running and Exercise Workout Armband Case for HTC U11 Life, HTC One M8 M9, HTC 10 and Desire 626 Mobile Cell Phones with Adjustable Sport Band, Reflective Border and Key Holder (Black) COMPATIBILITY - Compatible with the HTC U11 Life, HTC One M9, M8, HTC A9s, HTC One S9, HTC 10, Desire 555 and Desire 626 phones up to 5.9x3.1x.35 inches. This armband fits various arm sizes from 9 to 15 inches. An extender is available for larger arm sizes and is sold separately. USE - Enjoy full touch-screen control with easy access to your headphone jack and a slot for your house key. DESIGN - Our premium armbands are designed to deliver a stable comfortable fit. Unlike lower quality armbands, this band includes a wing band design which provides wider arm surface area coverage for added support. It also features an extra long hook and loop fastener which provides a more secure attachment. This ensures support for the toughest workouts from running and weight lifting to casual walking. PREMIUM MATERIALS - This adjustable armband is made of a combination of thick high quality lycra / neoprene which delivers an uber soft comfortable fit along with moisture resistant qualities. SAFETY - This armband features a thick reflective strip which borders the phone for increased visilibility in low light conditions. This is ideal for outdoor running at dawn or after dark.