Large-capacity Waterproof Expandable Hard Shell Backpack with USB Charging Hole(162 Black) Xpreen 10 Length of inflation tube:

10 Length of inflation tube: 65cm

Gradient gray filter

massage leg circumference up to 70 cm

Banana: 48

Battery capacity: 400 mA

Large-capacity Waterproof Expandable Hard Shell Backpack with USB Charging Hole(162 Black) Xpreen 10 Length of inflation tube:1. 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.