Item No.: CB22-BP001 Made of high quality 300D two tone polyester with PVC coating, 210D polyester lining Padded and breathable mesh back prevents overheating and promotes air circulation. Breathable adjustable shoulder straps with breathable padding can reduce shoulder pressure, maintain comfort and breathability Double zippered compartment suitable for a 15.6” laptop, an interior pocket for iPad, our travel laptop backpack 17 inches can be easily opened up to 90 to 180 degrees, so you can quickly pass airport security Zippered front and a hidden anti theft pocket on the back protect your purse, passport, phone and valuable items from thieves This travel backpack with luggage strap can be attached to the suitcase, it can help you fasten the carry on backpack to your luggage / suitcase