Upgraded Waterproof Function: Kawlity bike frame bag is made of waterproof wear resisting carbon grain, high quality EVA and seamless waterproof double zipper materials as well as design with hard, shake proof and anti pressure frame. So it can effectively protect your items in rainy days or extreme environments.High Sensitive Touch Screen: 0.3mm transparent TPU touch screen which is thinner, more sensitive, more fitting and more comfortable to use. Its suitable for most touch screen smartphones 4.6 6.5 inches. (Touch ID is not work through the cover)Large Storage space: Large capacity bike frame bag can easily hold smartphone/ wallet/ key/ sunglasses and so on to meet your daily cycling needs. And practical space arrangement of two mesh side pockets, which can be used to place frequently used items, cards or small things for easy use.Earphone Hole and Reflective Strips: You can access to the earphone quickly while riding by using the hole for earphone on the bottom. The humanized reflective belt design can provide a warning effect, ensuring safe driving at night.Easy to install : The 3 magic straps make it better fixed on the bike, and will not rub the legs even on rough roads. It can be released and installed quickly, and the length of the strap can be adjusted or trimmed according to your needs.