Description: High Quality Capacity: 10L/20L/30L/40L/60L/80L Note: 10L, 20L, and 30L are small bags and there is no breath valve and elastic fixed rope! ! ! Size: As shown Color: black, yellow Fabric: waterproof PVC Packing: dust bag Uses: tail bag, backpack, shoulder bag Accessories: straps, shoulder straps,rope hook Features: 1. Designed for motorcycle cycling, leisure, travel, outdoor sports 2. No need for rear frame, adapt to various models, quick release strap design. 3. Highlight reflective leather to improve safety at night. 4.100% waterproof Material: Simple effective Roll Top Design for 100% waterproof. 600D PVC,With seamless PVC material with high water repellency construction, waterproof performance is reliable, there is no need to worry about the contents getting wet. It can be used safely even on rainy days. 5.It"'"s can be used as handbags, messenger bags, backpacks,and also can be used as motorcycles, bicycles, cars luggage bags according to your needs. 6.The loading / unloading opening of the baggage opens widely, and it is easy to put in and out of things. Easy to clean:simply wipe, tantly bright,fit for long journey