COMFORTABLE: A Healthy Back Bag is the perfect combination of fashion and function, making style effortless. Can be worn cross-body for full back health benefits or over the shoulder to grab and be on your way! ERGONOMIC: Designed to mold to the shape of your spine, minimizing the strain on your back, neck and shoulders. The body-hugging contours and adjustable wearing eliminate twisting or straining your posture. The more places a bag touches your body as you wear it, the lighter it feels...and that’s the secret!