Hear that? That’s the sound of your PR falling and records breaking. Of Swissengineering colliding with elite athlete input to create the ultimate marathon shoe.Introducing the Cloudboom. Engineered with twin CloudTec® cushioning for instant fitand long-distance comfort. Featuring a carbon-fiber-infused Speedboard™ to kickright through the 42.2/26.2. Everything you need for your fastest marathon ever.Boom.A higher level of cloudtec®The Cloudboom incorporates a layer of Cloudelements above the Speedboard™ for thefirst time, creating a unique new twin layer ofCloudTec® in Helion superfoam. Working insync, this new CloudTec® system delivers aresponsive race-day ride and protects againstimpact on asphalt. The upper layer of Cloudsalso provides an adaptive fit underfoot, soyou feel the difference from the very firststep.Optimized tractionA new grip-rubber compound in an advancedtraction pattern is designed according to thenatural rolling motion of the foot. The result?A firm hold as you crush wet city courses atspeed.UpperA single layer of ultralight engineered meshkeeps weight low while increasingbreathability.Reinforced sections at the forefoot hold thefoot for fast cornering on the sharp turns ofcity courses.
MidsoleTwin layers of CloudTec® inHelion™ superfoam provide both instantadaptive fit and long-distance responsivecomfort.
SpeedboardThe explosive carbon-fiber infusedSpeedboard increases efficiency every stepand explosive kick when needed.
OutsoleAn updated traction pattern in a new rubbercompound delivers enhanced grip.