Innovative Vacuum Compression】sykart vacuum backpack is designed with upgraded the vacuum zipper to ensure the sealing effect. Reducing clothing storage space up to 60% with air compression system, free up more space to hold other items 【Carry-On Size & Expandable Design】The daily size of vacuum travel backpack is 19 x 11.4 x 7.5 inch, the depth can be expanded to 10.5inch, which remains a CARRY-ON size to ensures hassle-free airline boarding and eliminates extra baggage fees. TSA approved combination lock keeps your belongings safe and secure 【Multi-functional Compartments】 This vacuum seal backpack includes 8 compartments and pockets, such as 2 front pockets, dry/wet separation pocket, vacuum-seal compartment, expandable area, 2 internal zipper pockets, laptop compartment (fits up to 17'') 【Durable & Comfortable】 The vacpack backpack crafted from high-density oxford fabric with water resistant coating, and the compartment made from high-performance TPU material that is both odor-proof and waterproof. Ergonomic design with breathable thickened foam padding on the back panel 【Portable Air Pump Included】Coming with an air pump and 5 nozzles, which can be inflated and deflated, suitable for pool floats, inflatable beds, swimming rings, inflatable pillows, sleeping pads, air mattresses, beach toys, compression bags and others. (Not suitable for balloons, basketballs, or tires)