SONIC 4

Men. SONIC 4 Accelerate. L41302900. Men's Running Shoes. The lightweight, responsive training shoe for your fast days. The updated SONIC 4 ACCELERATE is designed to go even faster. We've kept our Optivibe" cushioning to dampen uncomfortable vibrations without sacrificing energy return, so you get a really responsive ride. But, we've reduced material in the forefoot, collar and tongue for an even closer fit. This shoe is ready to pick up the pace, are you?. Reduce vibrations. Optivibe" cushioning helps limit vibrations with the aim of decreasing muscle fatigue, while continuing to deliver a responsive ride.