Soft-Air technology in Mephisto Men"s Edlef Slip-On Shoes make tired feet a thing of the past! Slip into this ultra-soft slip-on loafer and relieve your tired soles! Like most shoes from Mephisto, this style features Soft-Air technology, a system that uses a closed-cell latex foam to provide you with oh-so-soft steps. Air is injected into the midsole, so when pressure is applied, the air cushion reduces shock and alleviates stress on the strike points. Double elastic inserts properly hold the shoe to the foot for a comfortable fit. Contrast stitching provides a stylish finish.