Mephisto: Helen Sandal(Women)Go Greek with the Mephisto Helen sandal. This classically inspired footbed sandal features leather or nubuck straps with an adjustable buckle for an individualized fit. SOFT-AIR technology in the footbed features 100% natural latex and cork to conform to your foot and provide extra cushioning and personalized support. Rubber midsole provides traction. The Helen is one of Mephisto's most-loved warm-weather options so whether you're trying them for the first time or adding a new color to your collection, you'll be comfortable and stylish in this easy summer staple.