Large-capacity Waterproof Expandable Hard Shell Backpack with USB Charging Hole(162 Light Gray) 15DecTag-Lazy Bracket 60kgs / 32

60kgs / 32

and it is equipped with a detachable O-ring

Rotate clockwise for 3 to 6 turns

Accessories：1m USB3

three days of rolling storage are given by default

Large-capacity Waterproof Expandable Hard Shell Backpack with USB Charging Hole(162 Light Gray) 15DecTag-Lazy Bracket 60kgs / 321. Material: ABS 900D strong film, EVA, polyester 2. Function: waterproof, with USB charging hole, shock resistance, capacity expansion, cut resistance, dry and wet separation 3. Accommodates computer size: 17 inches 4. Design of USB charging interface on the side of the bag 5. Widened and thickened handle design, comfortable and durable 6. Two way zipper, more convenient to open and close 7. Side handle design, a variety of carrying methods 8.