Easy to Use Vacuum System:The vacuum system is simple to operate. Just open the valve,manually press to release air, and close it tightly; Vacuum Backpack effectively compresses your belongings, saving up to more space.(You can also use a vacuum pump/Vacuum cleaner for quick compression, this backpack does not come with a vacuum pump). MULTIPLE POCKETS: This Vacuum travel backpack for women has multiple pockets to categorize your carry-on items well. Including: 2* front zipper pockets, 2* side pockets, 1* back anti-theft pocket, 1* 15.6-inch laptop pocket, 1* main pocket. EXCELLENT TRAVEL BACKPACK: The back of this carry on backpack is designed with a luggage fixing strap, which can fix the backpack on the luggage and make the travel more convenient; the shoulder straps of this flight approved backpack are built-in soft padding, which can relieve the fatigue caused by carrying the backpack for a long time, and the shoulder straps are designed with a removable chest buckle, which can help to fix the backpack. LUGGAGE STRUCTURE DESIGN: The main pocket of this personal item travel bag is designed with a 180-degree closure and open, and has a large capacity, so you can easily put in and take out your items.You can use this airline approved backpack as a small suitcase for your travel accessories. USB CHARGING PORT: The main pocket of this travel essentials backpack has a built-in charging cable that can connect to the power bank; The backpack is designed with a USB charging port on the side, which can be connected to a charging cable to charge your phone. This design allows you to charge your phone at any time, which is very convenient. WIDE USE: This luggage backpack is functional, compact, excellent quality, beautiful shape, perfect for use as a travel backpack, also can be used as a mochila de viaje, college backpack, work backpack. Suitable for business travel, air travel, outdoor activities, college and daily use, also suitable as a gift for friends, family.