The membrane upper of the Cloudrunner Waterproof is Swiss engineered for serious breathability, while it's supportive comfort lets you breathe. Made for the long run so you can take on anything in stride. Enjoy super-soft landings and support at every step. CloudTec® cushioning in ultralight Zero-Gravity foam and a wider bottom unit with a cradle-shaped construction let you forget gravity. Plus, the upgraded 360° waterproof upper keeps you cool and dry whatever the conditions.