• Waterproof & Wear-resistant: This bike top tube bag is made of TPU material and is 3D integrally molded; Benefit from the excellent performance of TPU, high mechanical strength, TPU material has outstanding carrying capacity, excellent elasticity, impact resistance and shock absorption performance; Even in the harsh outdoor conditions, this bicycle bag can be waterproof and wear-resistant
• Optimal Storage Place for Small Items: The main compartment is 9.05"*2.95"*4.92"(L*W*H); The bike frame bag fits small essential items like a cell phone or a wallet; Your legs won't touch it at all while pedalling
• Knob Locking: The bicycle bag is installed on bicycle frame by Knob locking system with elastic cord, easy to be removed
• Streamlined Design: Wide at top, narrow at bottom, riding without touching legs, reducing the wind resistance
• Rhinowalk is focus on bicycle bags, please let us know if you have any problems