【Vacuum Compression System】The travel backpack with vacuum system saves 80% on clothes storage space, reduces the bulk of your packed clothes, and maximizes packing efficiency. With a one-way outlet valve, you can opt for manually press to release air or vacuum pump for quicker compression. Note: The vacuum seal compartment has an AIR-TIGHT zipper, which is quite tight and requires extra force to pull,lf the pump does not work, please charge it and try again. 【Multifunctional Storage Compartments】The vacuum backpack have three spacious main compartments and multiple hidden pockets, including a dedicated dry/wet separation pocket to separate wet and dry items, isolating damp clothes and odors, and laptop compartment securely holds a 17-inch laptop with a layer of thickened cushion, a side bottle pocket, multi-function pockets, anti-theft pocket for passport, etc. 【Anti-Theft Design】In order to make your travel safer, The vacpack backpack adopts TSA customs anti-theft design. You can better protect the items inside your back pack vacuum and reduce the possibility of loss. The password operation setting of the TSA customs combination lock is very simple. 【Travel Backpack Carry on Flight Approved】This vacuum backpack travel saves you the trouble of checked baggage. You can carry this vacuum packaging backpack directly on the plane, saving time and worry. It saves you the trouble of pulling a trolley case, but it is more functional than a trolley case. This time, you can start your trip with this vacpack go travel vacuum on your back, which is very convenient. 【Comfortable and Breathable】Designed for long journeys, this backpack features a honeycomb back pad for superior air circulation, keeping your back cool and dry. Adjustable padded shoulder straps with shock-absorbing foam ensure all-day comfort, even on extended trips. 【Vacuum Compression System】The travel backpack with vacuum system saves 80% on clothes storage space, reduces the bulk of your packed clothes, and maximizes packing efficiency. With a one-way outlet valve, you can opt for manually press to release air or vacuum pump for quicker compression. Note: The vacuum seal compartment has an AIR-TIGHT zipper, which is quite tight and requires extra force to pull.  【Multifunctional Storage Compartments】The vacuum backpack have three spacious main compartments and multiple hidden pockets, including a dedicated dry/wet separation pocket to separate wet and dry items, isolating damp clothes and odors, and laptop compartment securely holds a 17-inch laptop with a layer of thickened cushion, a side bottle pocket, multi-function pockets, anti-theft pocket for passport, etc.  【Anti-Theft Design】In order to make your travel safer, The vacpack backpack adopts TSA customs anti-theft design. You can better protect the items inside your back pack vacuum and reduce the possibility of loss. The password operation setting of the TSA customs combination lock is very simple.  【Travel Backpack Carry on Flight Approved】This vacuum backpack travel saves you the trouble of checked baggage. You can carry this vacuum packaging backpack directly on the plane, saving time and worry. It saves you the trouble of pulling a trolley case, but it is more functional than a trolley case. This time, you can start your trip with this vacpack go travel vacuum on your back, which is very convenient.  【Comfortable and Breathable】Designed for long journeys, this backpack features a honeycomb back pad for superior air circulation, keeping your back cool and dry. Adjustable padded shoulder straps with shock-absorbing foam ensure all-day comfort, even on extended trips.