Material: 1000D nylon Size: Length 27cm, Width 18cm, Height 5cm Product weight: 0.24kg Product color: black, green, mud color, Suitable for: bicycles, electric scooters Product Features 1: Made of 1000D nylon material, waterproof and wear-resistant. It is durable and can maintain a long service life. 2: Multifunctional: The back of the backpack has straps that can be fixed on the head of the bicycle or electric scooter. 3: Exquisite double zipper design, full handle feel 4: There is a hand strap on the top of the backpack for easy carrying, and a single shoulder strap is provided, which can be carried and carried 5: Double-sided pocket design can carry umbrellas, pumps, etc. 6: Internal multi-pocket layered design for orderly storage 7: The design of 4 nylon fixing belts on the back is more stable, firmer and safer. It is suitable for all kinds of electric bicycles and can be installed or adjusted according to your needs. The fixed buckle can be detached. 8: Large-capacity design can hold wallets, mobile phones, keychains, kettles, earphones, power banks, glasses, flashlights, gloves, etc. 9: Use anti-collision material inside the backpack to effectively protect the contents of the bag 1: Made of 1000D nylon material, waterproof and wear-resistant. It is durable and can maintain a long service life. 2: Multifunctional: The back of the backpack has straps that can be fixed on the head of the bicycle or electric scooter. 3: Exquisite double zipper design, full handle feel 4: There is a hand strap on the top of the backpack for easy carrying, and a single shoulder strap is provided, which can be carried and carried 5: Double-sided pocket design can carry umbrellas, pumps, etc.