On Cloudflow Running shoes (49, red/grey) - The new Cloudflow by On is even faster and offers even more comfort than its predecessor. The 18 Cloud Elements of the redesigned Speedboard are closer together, creating a narrower centre bridge. This prevents larger rocks from getting caught in the grooves and makes walking on forest tracks a delight. The adaptive Helium Superfoam offers superior cushioning on impact and is easy on the joints. As the Clouds press together, they generate an enormous amount of push-off energy and you literally fly forwards. The heel has been reshaped for a secure fit and there is also a sophisticated lacing system with an elastic strap.The breathable shoes are suitable for fast training, running 10Ks up to marathons and provide the runner with plenty of speed and excellent cushioning.