1、Water And Dust Proof: Constructed from polyester material with welded seams, this bag effectively guards your valuables from water and dust, ensuring their safety and durability. Additionally, the material is easy to clean for added convenience. 2、Roll Up Design: The roll up design of the bag prevents water or rain from seeping in, providing reliable guard against humidity and keeping your belongings dry in various weather conditions. 3、Generous 20L Capacity: With a spacious 20L capacity, this bag offers ample storage space for your cycling essentials, allowing you to conveniently carry all your gear in one place. It includes a built in compartment specifically designed to accommodate your laptop securely during transport. 4、Wide Application: Ideal for cycling enthusiasts, commuters, and outdoor adventurers, this bag is a practical and versatile accessory for carrying your belongings safely while on the go, whether riding your bike, commuting to work, or participating in outdoor activities. 5、Multifunctional: The bag's functional design and rugged materials make it a reliable choice for protecting your valuables during cycling adventures. Its sturdy construction, water proof features, and laptop compartment make it a practical and versatile accessory for cyclists seeking both style and functionality. Item Type: Bike Rear Rack Bag Material: Polyester 1 x Bike Rear Rack Bag