The Mephisto Ladina features a removable anatomic footbed that adapts to the natural shape of you foot and can be easily replaced. Additionally, the Mephisto Ladina features the Translucent Air Bag System¬®_ô: a rubber compartment built inside the heel with a valve structure. This airbag is specially conceived and prepared to conform to the irregularities of any terrain during walking. As the shoe enters into contact with the walking surface, this airbag compresses to absorb the shock and act as a protective buffer zone for the foot. The Combo Phylon / Caoutchouc rubber outsole of the Mephisto Ladina is flexible, lightweight and designed to protect your feet from the jarring effects of walking.