The Cloudmonster Running Shoe in Iron/Hay from On Running.

Fresh from the lab comes their weirdest creation yet. Say hello to the Cloudmonster with more CloudTec®, more cushioning, a more monster of a ride. Featuring their biggest Clouds ever, its Helion engineering combines with their signature Speedboard® for explosive take-offs and a radical forefoot rocker that will make your runners want to keep rolling along even on their longer runs.

• Running never felt like this. With our largest Cloud elements ever, this is running on Clouds with the volume turned up.
• More CloudTec® than ever meets an explosive Speedboard® and a radical rocker shape. The result? Big energy return for an explosive feeling. Prepare for take-off.
• Light, durable, temperature resistant and big on energy return, Helion superfoam brings no-nonsense cushioning to this shoe's playful sensation.
• The step-in of the Cloudmonster makes running pretty much irresistible. The soft sockliner and upper turn recycled materials into next-gen comfort.