Designed to make speed available to everyone, the On Cloudflow 5 in Fog/Eclipse takes ingredients from their pinnacle race shoes for dedicated runners and casual runners alike to make the most of your speed work and fast training sessions. The On Cloudflow 5 puts a large layer of their pinnacle foam, Helion HF just below your foot for lightweight cushioning with excellent energy return. Beneath that you get a glass fibre and nylon blend Speedboard giving you a pop of extra energy within the build. The Cloudtec pod cushioning below is made from Helion foam and the whole shoe is shaped with a rocker that is tailored to enhance your forward feeling motion, for effortlessly fast miles. A large amount of rubber coverage in the outsole provides durable traction. Wrapped around your foot, a woven, engineered mesh provides breathable containment that helps you put your best performances down. Weight 270g in a mens US 8.5. Stack height 36/28mm. Heel offset 8mm. Cloudtec cushioning with Speedboard. Woven engineered mesh upper. Dual density midsole including Helion HF on top and Helion below.