Large-capacity Waterproof Expandable Hard Shell Backpack with USB Charging Hole, 161 Light Grey, 161 Black, 161 Dark Gray, 162 Black, 162 Deep Gray, 162 Light Gray % Type-C HUB Compression Mode H

Compression Mode H

Signal Noise: 740B SPL

Short to 28cm

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Print Width 48mm

Large-capacity Waterproof Expandable Hard Shell Backpack with USB Charging Hole, 161 Light Grey, 161 Black, 161 Dark Gray, 162 Black, 162 Deep Gray, 162 Light Gray % Type-C HUB Compression Mode H1. 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.