Product Name: Vacuum Compression Backpack Material: Waterproof Oxford cloth Size: 49 x 32 x 15CM After expansion: 49 x 32 x 20CM Capacity: Can hold a 17.3-inch laptop 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 Anti-theft zipper pocket on the back Waterproof/wear-resistant/moistureproof Wet and dry separation area vacuum compression airtight Large capacity = 24-inch luggage
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