Gym training, flexibility, X-shaped Speedboard®. Features: Updated tread pattern for grip during side-to-side movements; X-shaped Speedboard® for greater forefoot flexibility; Full-length CloudTec® cushioning for a smoother ride; Dual-density Helion™ superfoam for comfort and stability; Upper made with soft spacer mesh for maximum breathability; Smooth materials provide a plush feel and soft step-in; Quick-collapsing Cloud elements in the heel for stability; For street-ready style packed with gym-ready tech. Materials: Recycled Polyester. This dual-density Helion™ superfoam midsole has a softer, springier foam at the forefoot for extra comfort, while firmer foam and a wider platform under the heel deliver more stability. And full-length CloudTec® gives a smooth gym-to-street ride.. Looking for a gym shoe with something extra? The Cloudnova X has a new X-shaped Speedboard® that allows for more forefoot flex and better support during lateral movements. (And it’s connected to the heel clip, meaning better heel hold during intense training.)