XS HEALTHY BACK BAG by AmeriBag, Bags, handbags and purses in black - THE HEALTHY PACK by AmeriBag (R) is a patented ergonomic Ergonomic shape improves positioning to make the load feel lighter while reducing stress on the shoulders, neck, and back. With fully organized inside pockets and several outside pockets and tucks, the HEALTHY BACK BAG (R) is great for travel as well as everyday use. Each pack is crafted in a soft, naked cowhide - not a shiny ’painted’ skin.