The Kånken was originally designed to solve the back problems of school-aged children, and over the decades the pack has found users in all age groups. This Outlong version adds a bit of volume, computer compartment, large side pockets and a special bottom pocket. - Wear-resistant nylon - You can wear it like a backpack or carry it like a satchel - Detachable seat pad - Detachable chest strap - Will hold two A4-sized binders - Reflective logo - Front pocket PFC-free product. A part of Kånken culture is the way in which the pack gathers a unique patina over months and years of use. The black colour option gives you a head start in this: black Kånken products look a bit rough around the edges even when brand new.