Hear that? That’s the sound of your PR falling and records breaking. Of Swiss
engineering colliding with elite athlete input to create the ultimate marathon shoe.
Introducing the Cloudboom. Engineered with twin CloudTec® cushioning for instant fit
and long-distance comfort. Featuring a carbon-fiber-infused Speedboard™ to kick
right 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 Cloud
elements above the Speedboard™ for the
first time, creating a unique new twin layer of
CloudTec® in Helion superfoam. Working in
sync, this new CloudTec® system delivers a
responsive race-day ride and protects against
impact on asphalt. The upper layer of Clouds
also provides an adaptive fit underfoot, so
you feel the difference from the very first
step.
Optimized traction
A new grip-rubber compound in an advanced
traction pattern is designed according to the
natural rolling motion of the foot. The result?
A firm hold as you crush wet city courses at
speed.
Upper
A single layer of ultralight engineered mesh
keeps weight low while increasing
breathability.
Reinforced sections at the forefoot hold the
foot for fast cornering on the sharp turns of
city courses.
Midsole
Twin layers of CloudTec® in
Helion™ superfoam provide both instant
adaptive fit and long-distance responsive
comfort.
Speedboard
The explosive carbon-fiber infused
Speedboard increases efficiency every step
and explosive kick when needed.
Outsole
An updated traction pattern in a new rubber
compound delivers enhanced grip.