This VUP running armband features a 360 degree rotatable mount for viewing your smartphone at any angle. It is compatible with most 4.0 to 6.7 inch smartphones including iPhone and Samsung Galaxy models, and it accommodates phones with cases. The silicone straps are designed to keep the screen accessible without blocking Face ID or swipe functions. The armband is constructed from breathable lycra and neoprene materials that are lightweight and sweat resistant. It includes dual buckle loops and an adjustable elastic band to fit all arm sizes. This accessory is suitable for running, cycling, walking, and hiking, and it is washable with clean water.