There is a genuine medical rationale to it. The ergonomic shape of the bag hugs to the natural curve of the back. The more places it makes contact with the body, the lighter it feels and the less it adversely affects your posture. Healthy Back Bags were designed in collaboration with a doctor and a chiropractor, specifically to address weight stress issues in a single strap bag.
Available in all sizes, from very small, the Baglett to Large.
