Description: 600D waterproof fabric, water resistant, solid and durable. Stylish and classic design, it can cope with most road conditions, high-wearing feature and high tear-resistance. The main compartments offers storage space for books, small laptops, cycling gear or tools. The side zippered pocket offer additional storage for small items. Easy to installation and disassemble, the straps can fix the bike bag and convenient to remove, fits on all bikes with rear seat. Wide silver grey reflective stripes ensure the safety at night riding. Specification: Material: 600D Waterproof Fabric Size: 60 x 30 x 20cm/23.62 x 11.81 x 7.87 inch Package Includes: 1 Piece Bicycle Double Pannier Rear Seat Bag Note: 1. Please allow a slight color difference between the real item and the pictures due to the difference between monitors. 2. Please allow a slight measurement error. Hope for your kind understanding and have a nice shopping day!