DESCRIPTION 25-45L Expandable Capacity This motorcycle tail bag can be expandable to 45 Liter. Size: 16.5"L x 12.5"W x 7.5"H Standard / 16.5"L x 12.5"W x 13.4"H Expanded. Large storage room for carrying clothes, shoes, helmet, Ipad, and lunch. Compatible for most motorcycle models such as CB600RR, iron883, MT10, FZ07 09, R1200GS. NOTE: Doesn't fit dirt bike and bicycle. Universal Dual Use Bag Our motorcycle luggage bag was designed with universal strap mount for motorcycles. Dual multifunctional used as a handbag and backpack for easy movement. Brilliant Rain Cover Kemimoto motorcycle bag constructed from 1680D leather fiber, which water-resistant, tear-resistant and highly durable. A totally waterproof bag with rain cover to keep your luggage getting wet. Practicality and Versatility There is a zipper side pocket for store wallet, keys, cigarette, goggle; A main internal mesh bag for store Ipad, gloves, lunch; 25L-45L Expandable Large Capacity for store luggage, camera, and can store full helmet, half helmet, racing helmet. Universality Stylish Bag Easy to install the motorcycle seat bag on your motorbike with straps.The backpack is universality and stylish design with reflective striping. It's also a decoration to your motorcycle. If you have any problem, just feel free to reach out to us! FITMENT Most motorcycle models.