Height-adjustable "Your-Size-System" ergonomic carrying system Wide, comfortable, padded hip belts High visibility with reflectors throughout its perimeter. Easy to open and close with magnetic closure. Customizable with Kletties (velcro badges) Loop to hold hangers and jackets ergonomic design The ergobag design ensures that the school backpack "grows" with the child through easy adjustment of the size scale of the back support frame. It innovatively incorporates optimal load distribution, universal in premium hiking backpacks. Approximately a quarter of the weight of the school backpack is redistributed from the shoulders to the more stable and stronger pelvic area, reducing load-bearing stress on the shoulder muscles and spine.