Featuresr fashionable stylish beautiful appearance and durabler texture of material polyamide anti splash which can effectively prevent the sweat immerging into this bagr the back of the bag comprises a lightweight material sponge with mesh for excellent ventilation and comfort and enhancing stability of friction no shakingr includes a hole which is specially designed for headset wire so you can conveniently answer incoming call or listen to music anytime or anywherer let you