Optivibe, a unique combination of foams (one to dampen, the other to propel), helps reduce vibration on foot strike to decrease fatigue without affecting your overall ride. The Geometric Decoupling axis is oriented more laterally to create a larger medial platform for a more secure forward transition from heel to toe. The road-specific, Sensifit upper fits the contours of your foot, gently securing it in place, for dynamic comfort and extra reassurance.