Mephisto's classic walking shoe with Air relax system uppers made with full-grain nubuck leather for ultimate breathability and durability. Each shoe is lined with a removable felt insole to reduce friction and for convenient cleaning and replacement. The Air Jet system channels air throughout the shoe with every step to keep the foot fresh and healthy. These shoes also contain virgin latex foam mid-soles to absorb heel strike and to form to the foot for a customized fit. Constructed on Anatomically Correct True Fitting Last for proper heel, arch and foot support when walking.