High-quality waterproof protection Made from durable, high-quality waterproof fabric to keep your belongings dry in all weather while you ride. Construction delivers long-lasting protection for tools, snacks and personal items. Practical 2.5L capacity Compact 2.5L storage holds essentials without adding bulk. Easy access to gear while on the move—ideal for small tools, a phone, snacks, keys or a wallet. Aerodynamic, versatile fit Sleek, aerodynamic shape reduces wind resistance for high-speed riding without compromising performance. Designed to fit road bikes, mountain bikes and scooters. Secure and adjustable attachment Equipped with adjustable straps for a secure fit to your top tube and frame. Robust fastening prevents movement and maintains a stable ride even on rough terrain. Key attributes at a glance Function: carry and protect small essentials during rides Compatibility: road bikes, mountain bikes, scooters Size: 2.5 liters Material: high-quality waterproof fabric Performance: aerodynamic shape, stable attachment Practical use scenarios Daily commute: keep your phone, keys and a small wallet accessible and protected from rain. Long rides or fast road cycling: store energy snacks and quick-access items without affecting aerodynamics. Off-road or maintenance-ready: carry a multi-tool, spare tube and tire levers securely for on-trail repairs. This Top Tube Bag combines waterproof protection, compact capacity, aerodynamic design and a secure adjustable fit to keep your essentials safe and accessible on every ride.