Features: Comfortable Ergonomics Plannumber: Fifteen hundred features a ergonomic structure that effectively distributes weight, reduces back pressure, and ensures comfort during long cycling meetings. Thin and Transtransportablemail: Produced from thin materials, group is easy to carry and won’t add unnecessary burden during your ride. Reflective Safety Featureslstar: reflective tape, group enhances observability during night excursions, increasing safety for pedalists. Multiple Functional Storagemail: With multiple compartments and pouches, it allows organized storage for water bottles, equipment, clothes, and other cycling rudiments. Water Resistant and Ventilateducated: Constructed with water resistant materials and a ventilated back panel, it maintains your items dry and your back cool in various outdoor conditions. Specifications: Substancemail: 900D film + net cloth +polyester net cloth, Sizemail: 36x22cm Package Includes: 1Pc Travel Backpack note: Please allow 1-2cm error due to manual measurement. Please make surer you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual color to the item. Thanks!