WATERPROOF MATERIAL DUAL ZIPPERS SUN VISOR: The top tube bike bag is made of waterproof polyester, seamless waterproof double zippers design can perfectly protect your phone on rainy days and extreme environments. The sun visor can help you see the screen better.BIG SPACE AMAZING COMPATIBILITY: bike bag has enough inside room for long rides, holds a lot of stuff like charger, power bank, USB, bank card, etc.. The top can be dedicated to storing the mobile phone for multi-function operation.HIGH SENSITIVE TOUCH SCREEN HIDDEN EARPHONE HOLE: The bicycle phone bag has a high sensitive TPU film window which can help you use cellphone easily while riding and the hidden earphone hole allows you to answer the phone or enjoy music freely while cycling (Note: Touch ID NOT worked through the screen cover, Wired headsets can be easily used for mobile phones below 6.5 inches. Bluetooth headsets are recommended for mobile phones above 6.7 inches.)EASY TO INSTALL HUMANIZED DESIGN: Suitable for any bike with a frame. With three magic straps, you can adjust the frame bag on the handlebar and top tube of the bike. It is very convenient to install and remove and very stable, ergonomic design will not disturb your knees or legs while ridingSTURDYPRESSURE-RESISTANT: integrated design, 3D die-casting process, make our EVA frame bag sturdy, pressure-resistant and waterproof. It is not easy to peel off, is resistant to pressure and fall, and is not easy to deform. After many years of use, it still maintains the original hard shell shape.