1. External USB charging design 2. The opening and closing design is upgraded and the reserve is thickened by 5 cm, the capacity is instantly increased, and more items can be placed 3. Honeycomb breathable mesh, comfortable and lightening 4. Portable strap design, can be placed on the trolley case, freeing hands and convenient for travel 5. Fabric: Water repellent film; Lining: Polyester 6. Use: one shoulder, double shoulder, portable 7. Product size: 44x31x11cm, expansion thickness 15cm 8. Product weight: 860g
