Australian Oilskin Backpack – The Overlander is made from weatherproof, hardwearing Australian oilskin. The main compartment is massive, with more than enough room for textbooks, documents, and other equipment. It even has its own padded partition for a big old laptop or other delicate object. On top of the bag is a little zip pocket which is great for smaller items you want to find in a hurry, like USBs or change. There’s an insulated lunch box pocket which can keep your lunch cool for hours. And finally, there’s the front-most pocket which has a myriad of pen slots, partitions and pockets to keep your sundries organised. And there’s still the two drink bottle holders, the comfy, padded strap and leather carry handle to talk about.