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The X in Cloudnova X isn’t just a name — it’s the shape of the Speedboard running through the midsole, engineered to guide the foot through a smoother, more efficient transition with every stride. Underneath sits a dual-density Helion foam, firmer at the base for support and softer up top for the kind of plush landing that keeps easy runs feeling easy.
What’s different about the Cloudnova X’s Speedboard? The Cloudnova X uses an X-shaped Speedboard, a distinct geometry from On’s standard boards, designed to smooth the stride’s transition phase.
