Go the distance in comfort with the On Cloudsurfer 2, built for endurance. The shoe for your endurance run! Midsole The Helion foam in the midsole gives a lightweight feel to your feet and provides plenty of cushioning with every step you take. The foam combined with the CloudTec Phase technology offers an extra dimension of soft cushioning and seamless weight transfer for extra comfort. This is made possible by the familiar Cloud elements folding diagonally as you walk. Upper In strategic places, the Swiss-Engineered mesh upper provides flexibility and breathability while in other places the shoe fits a bit tighter. The shoe is a bit tighter around the midfoot for a safe and supportive feeling. The upper is also made of recycled materials. In this way, On tries to make its products increasingly sustainable. Outsole The shoe has a rubber outsole and offers good grip and traction while running.