1. The surface layer is treated with water repellent to prevent the bag from penetrating into the bag when splashed with water 2. Breathable backflow design, fine internal texture, perspiration and breathable 3. The shoulder straps are ergonomically designed, comfortable and light to carry 4. External USB charging port, easy to use (no power supply) 5. Adjustable shoulder strap design to adapt to different people 6. Can accommodate 16-inch laptops, etc. 7. Material: polyester, PVC, Oxford cloth 8. Size: 46x32x15cm
