Come and see our amazing products. This mobile phone arm bag is made of breathable air mesh and tensile-resistant Lycra fabric. It is waterproof, sweat-proof, and washable, providing a soft, odor-free, and light wearing experience. The separate key/card pocket helps protect the phone from scratches. Suitable for forearms and big arms without slipping: This armband has two fixed sizes, can support any arm circumference from 8" to 18", and the general size is suitable for bare 5.0-6.2 inch smartphones. Or fit an ultra-thin protective cover. The sweat-proof armband is specially designed with 163 ventilation holes and excellent breathability, which will bring you a cool feeling during exercise. It must be a good choice for running, biking, hiking, driving, traveling, or exercising at home Pls confirm with us about the packing info, stock color and exact production time before placing your order.