The Salomon Women's Sonic Three Confidence Running Shoes are packed with features to give you extra assurance on the road. 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. A 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. Invisible from the outside, the Sensifit cradles the foot from the midsole to the lacing system, providing a secure, snug, and virtually customized fit all around the foot. You're going to love the Salomon Women's Sonic Three Confidence Running Shoes and your feet will too.