Karnotech REMAX Running Sports Armband for iPhone 6s/ 6s Plus/ 6/ 6 Plus/ 5s/ 5, Samsung Galaxy/ Note, Screen Protector for Most Cellphone Magic bandage design, Adjust tightness randomly Clear sliding window, Easy operation, convenient to use Light soft ventilated material, Comfortable wearing Sweat proof and ventilated, fit for most smart phones Designed for men's size, Adjust tightness based on your arm size