Light. Responsive. And seriously quick. Lead training or racing in a shoe that's fast for everyone. Get more speed from a spoon-shaped nylon blend Speedboard that's stiff, strong, and lighter than before. Added to a powerful forward roll to catapult you to new personal bests. The ultra-light woven upper takes a cue from On's fastest shoe yet – the Cloudboom Echo - and results in breathability and performance that makes picking up the pace easier than ever. Dual-density superfoam now runs throughout the shoe. Impact is swallowed, meaning every stride is softer underfoot. What's more, it gives back an ultra-responsive running sensation. And that's crucial to going faster, and staying faster, than you have done before.