Waterproof Cycling Back Seat Bag A waterproof bicycle bag, made of 840DTPU/Nylon material, provides excellent waterproof performance, and protects your valuables from water, dirt, and dust, using seamless bonding process technology, The whole bag body is waterproof, and the waterproof zipper is added, which can make you feel more at ease when riding outdoors. The special material is durable, cold-resistant, aging-resistant, sturdy, easy to clean, and easy to adjust the size function. Hot Tags: waterproof bicycle seat bag, Manufacturers, Suppliers, Factory, Wholesale, Discount, Fashion, Newest, Quality, Durable