Comfortable and Sturdy: The laptop backpack is made of durable, water-resistant fabric that can withstand heavy use and harsh conditions. The ergonomically contoured airflow back design with thick but soft multi-panel ventilated padding gives you maximum back support. Breathable padded shoulder straps make it incredibly comfortable even with a heavy load. Roomy Space and Lots of Pockets: Multi-pockets keep all of your gear secure and organized in its place. Easy access laptop (MAX: 17") sleeve and tablet pocket are separate from the spacious main compartment. Front organizational pockets for all of your writing utensils, notebooks, pen, and keys, etc. Dimension of backpack laptop bag's : 48 × 33 × 21cm; Volume: 33L; Weight: 0.88kg. Functional and Safe: There is a strap on the back panel of the laptop backpack bag that allows it easily hook to luggage/suitcase handle tube when traveling, and foam padded top handle for long-time carrying on. With a hidden anti-theft pocket on the back protect your valuable items from thieves. The internal padded sleeves have a velcroed strap to hold your laptop and table, preventing them from sliding and bumping.