Classic Kanken, which went on sale for the first time in 1978, with a twist. This model has room for up to a 13'' laptop in a special padded compartment at the back. Padded shoulder straps. Large main compartment, two side pockets and a zippered pocket in the front. The entire bag is made of durable Vinylon F. A backpack perfect for everyday use, but also great when you are traveling. It's nice to be able to easily take out your laptop when going through airport security, even when the backpack is packed. Material: Vinylon F.