WEST BIKING Reflective Bicycle Seat Tube Bag Waterproof MTB Road Cycling Storage Bag EVA hard shell, not easy to deform, suitable for all kinds of bicycles PU rainproof fabric with rubberized waterproof zipper, better protect your items 1.5L large capacity, mesh pocket inside to keep things from moving around, meeting your storage needs The bag fits the bike frame well, won't hit your legs 3 magic tape straps installation system, more convenient to install and remove Reflective pattern, effectively improving the safety of night riding Specifications: Material: EVA/PU Capacity: 1.5L Size: 27*12*6.5cm Package included: 1 x Bike Top Tube Phone Bag Bag Only, Others Not Include