Soft spacer mesh with lining for added durability. Highly breathable, making it ideal for all-day wear and training. X-shaped Speedboard made from TPU for more forefoot flexibility and a smoother ride. Created via injection moulding to avoid unnecessary waste. Dual-density Helion superfoam midsole creates a softer feeling in the forefoot and more stability in the heel. Updated CloudTec cushioning runs the full length of the shoe.