The women's On Cloudboom is built for fast marathons and road races. On infused its signature Speedboard with carbon-fiber to create explosive power and snappy speed. Designers then sandwiched the Speedboard between two layers of On’s Helion foam—a lightweight, responsive composition. A single layer mesh upper keeps the shoe lightweight and airy, so your muscles (and your feet) stay fresher for longer. On reinforced sections in the forefoot to add stability on sharp turns, while a new traction pattern on the rubber outsole increases grip on pavement. When the PR is on the line, lace up the women's On Cloudboom for maximum speed. Tech specs On Cloudboom Weight 7.94 oz Drop 9 mm Plate Carbon-fiber infused Speedboard Midsole Helion Category Neutral Use Racing
