Rock Sax Rucksacks are strong, functional and stylish. The bags are fully padded throughout on both the straps and the inner compartments, as well as the bottom of the bag for extra durability. Offering a Laptop/Tablet section which doubles as a book divider, with all the bags there is plenty of room for both Devices and Files. A Built-In-Headphone port means you can store your media device safely whilst enjoying your music. The bag has a durable construction with a strong grab handle to support both hanging or carrying. The approximate dimensions of the bag are 45cm x 30cm x 15cm with a large 20L Capacity. The bag offers a spacious front zip pocket on the outside and a smaller zip pocket on the inside.