1. Material: PC
2. Reverse flow breathable back panel
3. Breathable padded shoulder straps
4. Waterproof safety protection
5. With back cushioning bag
6. 16.1-inch computer bay
7. Customs lock + USB charging port
8. No collapse, no deformation for a long time
9. TPU handle, moderate width, comfortable grip
10. Hidden pocket on the back with trolley case strap on the back
11. The zipper is smooth, tear-resistant and bend-resistant
12. Internal structure: zipper pocket, mobile phone pocket, document pocket, interlayer zipper pocket, computer insert pocket
13. Size: single layer: 43x10x32cm, double layer: 43x13x32cm
14. Unit weight: about 1.9kg