Upgraded material: 840D Nylon material with double side TPU coating make it more solid and wear resistant.This material constructed from high-strength nylon fibers with a high-density weave,it offers outstanding resistance to abrasion and tearing,making it ideal for demanding outdoor use; Despite its durability,nylon remains it's lightweight, it provides excellent balance of strength and reduced weight,perfect for applications such hiking backpacks and tactical gear; And it provides a smoother texture which can maintains the shape well. Full waterproof : Waterproof 840D Nylon material laminated with TPU on both sides plus seamless high-frequency welded construction delivers full waterproof protection. Quick-release function: The quick-release hook made of reinforced PA66+Glass fiber which can be quick-release easily. Multiple uses: With removable strap,it can be carried on the shoulder or hand lifted Compartment and more convenient design: Internally equipped with compartments for individual storage of items; Reflective signs make your night rides more visible and safer; Each bag has Velcro for you to paste any patch as you like. Size 12L Color Black Pattern Solid Capacity 12 Liters Brand Name Rhinowalk Shell Type Soft Strap Type Removable Style Name Sports Material Type Nylon Mounting Type Rack Mount Number of Compartments 1 Compatible with Vehicle Type Bicycle