Description: Color: black, army green Capacity: 37L Material: pullable fabric + water repellent fabric Whether waterproof: waterproof Design feature: large capacity Whether it can put a mobile phone or a kettle: both Product matching: none Installation method: fixed with strap Product size: 35*30*13/31*30*13 Product weight: about 655G Specifications: 1. High-density fabric, wear-resistant and waterproof: Pullable fabric + water repellent, abrasion resistance, scratch resistance, etc. 2. Large capacity and large space: The main compartment provides storage space for books, small laptops, cycling equipment or tools. Side zippered pockets provide extra storage space for small items 3. Classic and durable: stylish and classic design, can cope with most road conditions, with high abrasion resistance and high tear resistance 4. Unique design: reflective strips are printed on the body of the bag, which can warn traffic under the lights to ensure the safety of riding at night 5. Convenient installation: easy to install and disassemble, the belt can fix the bicycle bag, it is convenient to disassemble, suitable for all bicycles with rear seats Package Included: 1*back seat bag