- Easy transport and aerodynamic design Lightweight and portable with a thin and narrow edge to avoid rubbing on the knees, delivering excellent aerodynamic performance. Suitable for most mountain driving and road vehicles. - Durable construction for long-term use Three-dimensional modeling design creates a sturdy bag with a built-in TPU card holder. Built to stand up to long-term use and reliable inclusion. - Protective and high performance materials Uses single-sided self-adhesive TPU, 600D double-sided adhesive TPU and PP backing material. An approximate 3 mm wool cushion provides effective shock absorption and durability. This bike frame bag is suitable for serious cyclists. - Flexible and secure mounting options Two installation methods are available: screws or straps. Includes secure mounting hardware with three adjustable straps, four screws and eight seals for a worry-free ride. - Key attributes at a glance Materials: TPU, 600D double-sided adhesive TPU, PP backing, wool cushion (approx 3 mm) Function: frame bag with built-in card holder, protective padding, shock absorption Compatibility: suitable for most mountain driving and road vehicles Performance: lightweight, aerodynamic, durable, and easy to install - Use scenarios 1) Long road rides or mountain tours where you want lightweight storage with quick access to essentials while maintaining aerodynamics. 2) Daily commuting requiring secure, stable mounting and convenient access to small items stored in the TPU card holder. 3) Training sessions where reliable shock absorption and durable construction help protect contents and maintain a secure fit on varying terrains.