Features: High Quality Material: The material of this backpack is light and thick, wear-resistant and durable. 2cm breathable mesh on the back, making you more comfortable to carry. USB Charging Port: There is a USB charging portoutside the backpack. You can put a power bank into this backpack, so that you can charge your electric devices easily. Adjustable Shoulder Strap: The length of the shoulder strap of this backpack can be adjusted according to your needs, which is suitable for all people. Large Capacity: This backpack has a large capacity. It can hold mineral water, umbrellas and other daily items. You can take it with you when you go camping or travel. Comfortable Handle: This backpack has a comfortable handle for carrying by hands, relieving your shoulder pressure. The hooks on backpack can be disassembled, so you can adjust the way of carrying. Specifications: Material:Polyester Size: 19*36*9cm Package Included:1*Backpack Notes: Please note that due to the influence of light and screen, slight chromatic aberration is acceptable. Please allow 1-3cm error due to manual measurement. 1*Backpack