Road/Gravel Bike Aerodynamic Top Tube Bag Brand:WEST BIKING Material:210D Diamond grid single - sided TPU + 600D double-sided TPU + PP board Weight:About 90g Size:As shown Capacity:Approximately 0.7L Accessories:Main bag*1pcs/Hook&Loop straps*3pcs/Screws*4pcs/Gasket*8pcs Waterproof Process: Utilizes seamless welding and waterproof TPU fabric material to prevent rainwater infiltration effectively. Strap Fixing: Installed securely with three straps on the frame for easy installation, quick release, and effortless removal. Screw Fastening: The frame is firmly secured with screws, ensuring easy dismantling and fastening without any shaking. Wind-breaking Shape: Designed with a wind-breaking shape to prevent interference with the rider's legs and reduce wind resistance. Lightweight and Sturdy: Features internal hard shell support for a three-dimensional and sturdy structure, with a net weight of about 90g.