Travel Men Expanded Laptop Backpack vacuum compression hiking Backpack USB charging Business Large Capacity Backpack For Pumps

Product Name: Vacuum Compression Backpack
Material: Waterproof Oxford cloth
Size: 46*30*16CM
Expanded size: 46 * 30 * 27CM
The capacity is approximately 40L
Capacity: can hold a 16-inch laptop
USB charging
Separate laptop bag
Using the vacuum compression method:
1. Open the compressed vacuum lined bag
2, put the clothes on the air-tight zipper
3. Open the one-way exhaust valve
4. Press to exhaust the air inside
Function: Breathable back
Comfortable foam shoulder straps strap
Hide shoulder straps
Waterproof/wear-resistant/moistureproof
Wet and dry separation area
vacuum compression airtight