The Healthy Back Bag® distributes weight along the entire length of the back, it feels lighter and wont stress your spine.
So it really is good for you. Most bags pull away from the body causing you to compensate by leaning and twisting.
The more places a bag touches your body, the lighter it feels - it becomes part of you.
The Healthy Back Bags unique teardrop shape distributes the weight evenly along the length of your back rather than pulling from one point on the shoulder. The non-slip strap ensures the bag stays put. There are no rigid bits in or around the bag, so it contours to your shape, encouraging good posture.
I think this should be a standard bag that all children should have to carry around at school as so many carry things in completely the wrong way and have too much weight in them that will probably leave them with back problems in the future.