Features： 1、Made of nylon material, waterproof and wear resistant, it is durable and can be used for a long time 2、Four detachable straps that can be fixed to the head of a bicycle or electric scooter, and a single shoulder strap is provided, which can be carried with you 3、Large capacity design, can accommodate wallet, mobile phone, key chain, kettle, headset, power bank, glasses, flashlight, gloves, etc 4、Double sided pocket design, which can hold umbrellas, water pumps, etc. Multi Pocket layered design inside, orderly storage 5、Four nylon fastening belts on the back are designed to be more stable, firm and safe. Applicable to all kinds of electric bicycles, which can be installed or modified according to needs Specification： Item Type: Bicycle Backpack Material: Nylon Product Size: Approx. 27 x 16 x 5cm / 10.6 x 6.3 x 2in Package List： 1 x Bicycle Backpack 5 x Remove Belt