Durable materialIn addition to being waterproof, the stronger bicycle bag also has a tear-resistant fabric. Thanks to the high-frequency stitching on both sides, the rear carrier bike bags are so strong that not even a needle can penetrate the seams. Remember to protect your bike bags and delicate items from obstacles like roots and stones when you are off-roading and doing adventurous activities Front Wheel & Rear Wheel Classic The fastening system is very intuitive and allows the saddle bags for bike to be securely fastened to the frame. The fixed triangular hooks are also compatible with most luggage carriers (MAX16mm). And the velcro fastener can be cut to the actual thickness of the carrier as desired. The bike bag is perfect for loading front or rear racks 2 in 1-Better for outdoor use. The 28cmx15cmx38cm, with a capacity of 15L and a roll top for up to 18L. Besides, you can carry the bag over your shoulder or on the back of your bike. Four colours to choose from to meet your outdoor cycling needs for commuting, outdoor touring and more. Excellent Waterproof & Reflective LogoThe bike bag set for e-bikes can withstand heavy rain and splashing water thanks to the seamless fusion technology and roll-top closure. Even if the bag is filled with water, not a single drop will seep out and protect your belongings from moisture. In addition, the front and sides of the bag feature a reflective design, keeping you safe in the dark.