PAASTAI Expandable Business Backpack — Slim Carry-On Vacuum-Compression Laptop Bag for 15-17" Laptops, Water-Resistant, Convertible Single-Shoulder (Black/Dark Blue)

Travel-friendly business backpack with built-in vacuum-compression that cuts bulk by 40% when not in use. Size — Expanded: 39×19×24cm; Compressed: 39×19×10cm. Weight: 400g. Constructed from premium water-resistant nylon and finished with reinforced stitching for long-lasting use. Includes a dedicated padded compartment that fits 15-17" laptops. Slim carry-on profile that can be converted to a single-shoulder bag using a hidden strap.