1、Manufacturing Material: Made of high quality 12oz canvas and leather materials, wear resistant and dirt resistant, durable, which can be used for a long time. 2、Large Storage Bag: The large storage bag is ideal for storing daily necessities, bicycle equipment and bicycle accessories. It will be a good companion on the road. 3、Stain Resistant and Easy to Clean: Easy to install, can be perfectly connected to the back seat of the bicycle, stable and reliable, stain resistant and easy to clean. 4、Fine Workmanship: Fine workmanship, perfect details, good sense of use experience, suitable for riding a good product, you can use, also can give friends. 5、Stable and Firm Installation: Not easy to shake, stable and firm installation, convenient and fast disassembly, which can effectively protect the items against shock.