Mephisto Helen Plus#2800, Helen Plus is the WIDE fitting version of the style Helen – Internationally known for their outstanding craftsmanship and lasting comfort, MEPHISTO footwear makes tired feet a thing of the past. Mephistos revolutionary SOFT-AIR TECHNOLOGY is the innovation behind this exceptional comfort. The flexible SOFT-AIR midsole minimizes the shock from walking, offering protection to your feet, relief for your joints, and proper care of your back.