Frabicon Xplorer Men Laptop Backpack College for 15" Macbook and iPad with Light Reflective Stripe Waterproof for Business Bookbag Mochila - Black Roomy backpack made with well constructed, sturdy and durable waterproof 1680D ballistic nylon. Fully padded including bottom area of laptop compartment and protect with VELCRO prevent laptop falling out easily. 1.6 pounds lightweight(46% lees weight than Macbook Air 13) but spacious(20L). Compatible with most up to 15-inch laptop, tablet PC, Ultrabook, Chromebook. SECURITY. Reflective stripe helps cars notice you while walk at night. Double zipper with hole on main and mid compartment for anti-theft padlock(padlock buy separately). 12 compartments: Padded main compartment*1(11*16.5*5.3 inch) | Tablet pocket *1(8.1*8.3inch) for up to 9.7 inch iPad Pro, Air | Interior mesh compartment*1(9.1*11.2 inch) | Middle compartment*1(9.5*15.4*2.4 inch) | Zippered interior pocket*1(8.3*14.2 inch) | Organized pocket for 4 and 5.5 inch cell phone*2 | Padded Velcro pocket*1 | Quick access front pocket*1 | Secure mesh side pocket for Nalgene OTF water bottle 24 oz.(bottle diameter: 2.75 inch). COMFORT. Functional design for everyday carry | Padded adjustable shoulder straps for comfy wear | Suitcase friendly trolley handle belt | Ergonomic airflow system provides extra breathable cushion for extra back support | Padded top handle. Sturdy construction and high quality back support cushion, padding, zipper appreciated by customers.