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 centered to deliver a balanced, effortless forward transition from contact to propulsion. The road-specific, lightweight Sensifit upper fits the contours of your foot, gently securing it in place, for dynamic comfort with no added weight.