- CloudTec® in Helion™ superfoam gives the Cloudswift cushioning with zero compromises - Temperature resistant Helion foam provides the same unrivaled performance in hot and cold conditions - Durable rubber reinforcements provide high traction at high speed, even on wet roads - The breathable engineered-mesh of the inner sock construction keeps your feet cool, even when on-the-road temperatures soar - Helion superfoam is made to perform on hard surfaces and protect from impact - Colour: Black/Eclipse - Style: 26.99822 ABOUT ON RUNNING On was born in the Swiss alps with one goal: to revolutionize the sensation of running. It’s all based on one radical idea. Soft landings followed by explosive take-offs. Or, as they call it, running on clouds.