New name, new tech: The Cloudnova Flux is now the Cloudnova X. Featuring a full-length CloudTec® midsole for a smoother ride, plus an X-shaped Speedboard® for more forefoot flexibility. Soft, springy and stable, it's the ultimate street-to-gym shoe. Best for: Workouts, Low-mid load, Gym training, Short runs, 5K runs, Treadmill runs, All-day wear. Recycled content polyester: 92%, Total recycled content: 26%.