Chronic neck and shoulder pain is often exacerbated by people carrying too much on their backs, especially for those in metropolitan areas that need to carry their belongings throughout the day or students that are lugging around heavy text books.
The Ivar pack attempts to evenly distribute the weight of the pack, bringing items closer to your body (to decrease the torque load) and stacking the weight vertically. The larger packs have a waist strap which takes the stress off the shoulders and distributes the weight through the pelvis, which is even better. Although the best strategy to relieve pain is to lighten the load, the Ivar may be a good solution for those unable change their ways.
very good for children spine!