Features 1、Waterproof technology: Adopting seamless welding process and waterproof TPU material to prevents rainwater infiltration. 2、Magnetic quick disassembly: The magnetic quick opening and closing method allows for one hand retrieval of items while Cycle. 3、Knob fastening: The bag is fixed on the toptube with a knob rope buckle, which is safer and easy to disassemble. 4、NarrowEdge Streamline: GraduallyNarrowing the size, preventing leg collisions while Cycle, and reducing wind resistance. 5、Lightweight design: Made of TPU material, lightweight for Cycle. Designed with a strong magnetic attachment, this bag ensures stability even on rough terrains. Its waterproof feature protects your belongings from rain and splashes, making it a perfect accessory for all-weather cyclists. With ample storage space, it can easily accommodate your essentials such as mobilephone, wallet, and keys. Features: Waterproof technology: Adopting seamless welding process and waterproof TPU material to prevents rainwater infiltration. Magnetic quick disassembly: The magnetic quick opening and closing method allows for one hand retrieval of items while Cycle. Knob fastening: The bag is fixed on the toptube with a knob rope buckle, which is safer and easy to disassemble. NarrowEdge Streamline: GraduallyNarrowing the size, preventing leg collisions while Cycle, and reducing wind resistance. Lightweight design: Made of TPU material, lightweight for Cycle. Specifications: Color: black, blue, orange (optional) Capacity: 2L Material: TPU Item size: 230 * 125 * 75mm / 9.0 * 4.9 * 3.0in Item weight: 200g / 7.1ounce Package size: 230 * 120 * 80mm / 9.0 * 4.7 * 3.1in Package weight: 240g / 8.5ounce Packing List: 1 * Bike Bag Package List 1 * Bike Bag