There is nothing extraordinary about this slipper, just a regular product. The word doctor is misleading. It is like any soft slipper you get in market. Update: This slipper hurts at the gap between my toe. So, using is as a guest slipper now. Also the stitch on the top portion of slipper has been done using plastic thread which start to break apart after a while and sting into the skin. Don't buy this product.