The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. Previous page Next page 1 Waterproof Compartment 2 Compression Compartment 3 Expansion Space 4 Secure Lock 5 Laptop Compartment Previous page Next page 1 Cushioned Pad 2 Safety Lines & Whistle 3 Luggage Attachable Band 4 Quick Access Pocket 5 Side Pocket How large is the vacuum backpack's capacity? The backpack starts at a spacious 20L for daily use and it can expand to 30L via zipper for extra space. For longer trips, it can compress to a generous 60L via the vacuum compartment. How many separate compartments and pockets are available in the backpack? The backpack features 1 compression compartment, 1 computer compartment, 6 zippered pockets (including 1 wet pocket), 4 mesh pockets, and a side pocket for water bottles or umbrellas. What is the maximum computer size that the laptop compartment can fit? The backpack features a dedicated laptop compartment on the back, spacious enough to accommodate a 17.3-inch laptop. It also includes a built-in tablet pocket and additional pockets for electronic gadgets, ensuring easy organization and storage. Why is the zipper in the vacuum layer hard to pull? The leak-proof seals on the zipper make it more challenging to open. Hold the D-ring and pull hard. If it doesn't open, please try harder. How does this backpack ensure comfort? Our backpack combines ultra-soft, extra-thick shoulder straps with a breathable back panel for comfort and coolness on any day.