Features: Expandable backpack features vacuum compression technology and a storage system, offering clothing capacity with travel friendly laptop compartment for efficient travel organization. Multi layer compartments, reinforced triple stitched stress points, and 180° full access main panel, this Oxford fabric backpack ensures durability and quick item retrieval . Great for frequent traveler, outdoor adventurers, and busy professionals needing airport routines or day trip. Suitable for securing onto luggage via universal strap during transit, gym with ventilated wet pockets, or rainy commutes thanks to waterproof lining. Ergonomic memory foam shoulder strap and weight transfer backplate minimize fatigue, while zippers maintain smooth operate even when fully loaded. Specifications: Component: Oxford fabric Optional Color: As picture shown Size:approx. As picture shown 45x30x16cm /17.71x11.81x6.29in Extend 8cm/3.15in Quantity: 1set Package Includes: 1pc Expandable Vacuum Compression Backpack 1pc USB Cable 1pc Vacuum Pump note: Please allow 1-3cm error due to manual measurement. please sure you not mind before you bid. Due to difference between different monitors, the picture may not reflect the actual color.