WATERPROOF MATERIAL & DURABLE. With high sensitive TPU film window on the bike phone front frame bag, you can easy to play your cell phone or see your activity while using maps on a ride. LARGE CAPACITY Except the phone, this bicycle bag is also designed for storing a lot of small items, such as keys, wallet, pen, small repair tools, power bank, mini flashlight, other accessories. With a mesh compartment in the main pouch, cards and cash can be stored separately and keep your items tidy. EASY TO INSTALL & REMOVE Strips without rigid elements, will not scratch the frame. Big storage but lightweight and heavy-duty, streamline shape design could reduce drag on your road. SUN VISOR A sun visor on the top helps you watch phone screen clearly, which is great for sunny days. UNIVERSAL FITS Compatible with most Smartphones.