The Fjallraven Kanken was launched in 1978 as a solution to solve back problems for school kids. It comes with simple straps, a pad to keep the back straight and soft, laptop pocket for a laptop up to 13″ and a light reflecting logo.
The most related sentence to a Classic Kanken backpack is “Straight backs are happy backs”.
All Kanken Classics come with two side pockets and a zip pocket in the front, a top handle, narrow, supple shoulder straps and a sitting pad in the back pocket. The front of the bag features a logo that doubles as a light reflector.