Straight backs are healthy backs! Knken was released in 1978 to help prevent back problems seen among Swedish school children. Now over 35 years later Knken has straightened out millions of backs and become one of Fjllrven's most popular products, loved by generations of users. Knken No. 2 is made from durable, double-waxed G-1000 HeavyDuty with an inside back pocket in G-1000 Lite. Just like its predecessor, it is a durable everyday backpack, just as practical to use on the way to school or work as when on an outing or out traveling. The main compartment has a generous opening that makes it easy to pack and take things out. The back pocket has a padded sitting pad in G-1000 HeavyDuty so a comfortable rest is never far away. Two open pockets on the sides and a zippered pocket on the front. Details and handles in leather, shoulder straps in textile. Impregnation can be easily enhanced with Greenland Wax, something that also further increases durability.