Introducing the Vacuum Compression Backpack – a durable and waterproof travel essential made from Oxford cloth. With a base size of 49 x 32 x 15CM, it expands to 493220CM, offering ample space for a 17.3-inch laptop and more. The backpack features a vacuum compression system to maximize space, breathable back panel, foam shoulder straps, anti-theft zipper pocket, wet/dry separation areas, and password-protected compartments. Ideal for business trips, outdoor adventures, or school, it offers the capacity of a 24-inch luggage in a compact design, ensuring organized and hassle-free travel.