1. Shell material: Nylon 2. Liner: 210D polyester 3. Any sizes, materials, designs, colors and printings are available. Triangle Style One Strap Backpack Features:Material: according to your requestsSize: specified by customersLogo: custom specifications acceptedMOQ: 5000pcsCanvas fabricsOver the shoulder adjustable strapMeasures approx. 8"H * 8"L * 3"WFront velcro pocketFront zip pocket w/ lined ...