1Ultra-thin and lightweight fabric, soft and comfortable. 0.1cm thickness, close to the body and avoid shaking. 2Humanized design, more convenient and efficient for sports. Contain barrier membrane, effectively block from the abrasion of key, coins to mobile phone, protect the mobile phone shell. 3The main bag is made of waterproof polyurethane fiber, it has good elasticity, pressure resistant and wear resistant. 4Portable and perfect for running, cycling, outdoor fitness. 5Intimate partition design, simple and practical, can put the bank card, id card and so on, and can effectively prevent the friction between mobile phone and other items.