Our motorcycle tail bag is made of sturdy and durable Oxford cloth, with a maximum size of 17in * 12in * 11.5in. You can safely store anything you want without worrying about it breakingOur motorcycle bag is expandable and can easily store your helmet. In addition, you can use it to carry your clothes, hat, gloves, drinks, food, etcThis motorcycle luggage comes with an optional shoulder strap that can be converted into a backpack form, making it easy for you to carry all your items. You can compress it when you don't need it, and stretch it when you need itOur motorcycle bags have a hard shell and streamlined appearance. At the same time, its appearance also helps to increase aerodynamics and reduce wind resistance. It's definitely cool to bring it with you when you go outYou don't need to use any tools, just tie the bag to the motorcycle with a strap. Meanwhile, you can easily take out and carry this motorcycle trunk with you