It is an excellent running shoe for daily runs, but its fast nature makes it ideal for tempo and interval training. Go for a completely new running experience with this all-round running shoe! Midsole The Cloudflow has the reactive Helion superfoam cushioning material that provides a lot of cushioning with every step you take. The Helion SuperFoam is combined with the unique CloudTec technology. CloudTec are the 'clouds' that absorb both horizontal and vertical shocks and therefore make your landing extra soft. Once your feet hit the ground, the Clouds stay firmly in place so you can continue with a powerful push-off. The powerful push-off is due to a Speedboard plate that ensures an active and responsive push-off. Upper The Swiss-Engineered mesh upper provides support in strategic places around the midfoot and has high breathability in the forefoot. The Swiss designed upper is lightweight yet remains a strong upper to support tired legs. Outsole The shoe has a new rubber compound with an improved traction pattern, so you can run on different surfaces and keep running at speed. Start your running session with the On Cloudflow 4 and pursue your goals!