Fjallraven kanken straight backs are happy backs k nken was created as far back as 1978 to help prevent back problems among swedish school children and quickly became a common sight at preschools and nature schools throughout the country today 35 years later k nken has straightened millions of backs across the globe and has become one of fj llr vens most beloved products this classic backpack is equally suited to journeys to and from school or work as it is to trekking and travelling th