Yoann SANO by Mephisto designed for a phenomenal walking experiance, engineered to be your everyday fitness-trainer. Built with dual zone technology. MULTI-VIBRATION-SYSTEM stimulates leg, buttock muscles, and tightens abdominal. POWER-STIMULATOR-TECHNOLOGY maximizes shock absorption protects feet, soothes joints, verta brea and spinal cord. Premium nubuck leather straps all cushion lined, outersoles are designed with multi shock absorbers and are 100% latex.