When you develop a shoe with elite athletes you never stop making improvements. Meet the all-new Cloudflow. Now in its third generation and faster than ever. Featuring a fast-firing Speedboard® and Helion™ superfoam for responsive power and soft landings. Engineered for high speeds and maximum comfort whether you’re crushing a 5K or a marathon. The all-new Cloudflow. The shortcut to runner’s high.


  • No-compromise Cushioning The Cloudflow makes elite-level technology accessible to any runner intent on going faster. The ultralight HelionTM superfoam combines a fast, responsive feeling with fully cushioned road protection. 
  • Forward-thinking Upper The re-engineered upper not only creates a more streamlined look, but seamless comfort a speed. And with the race against climate change in mind, 70% of the polyester used is recycled.
  • Next-level Grip The CloudTec® outsole evolves for better hold on the road. The Cloudflow gets the same geometry, grip rubber and traction pattern as our elite marathon shoe, the Cloudboom. Time to kick asphalt. 
  • Upper70% of the polyester content, and 20% of the entire shoe, is from recycled materials. 
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  • Re-engineered Heel Hold The heel cap fit is now even more precise, for a reassuringly secure fit even as you take sharp corners. Ideal for intervals around the block or flying around tight city streets at a marathon major. 
  • Outsole Grip rubber compound with enhanced traction pattern.
  • Midsole Helion TM superfoam.
  • Speedboard Made from polypropylene and shaped for speed.


  • Activity: Racing, Running, Walking, Cross-Training, Casual
  • Advanced Features: Midsole plate, Removable Insole, Recycled Content, SockLiner, Reflective, Breathable
  • Advanced Technology: Cloudtec, Helion, Speedboard
  • Arch: Normal (Mid)
  • Closure Type: Lace Up
  • Forefoot Stack Height (in): 0.5502 in
  • Forefoot Stack Height (mm): 14 mm
  • Heel Stack Height (in): 0.9039 in
  • Heel Stack Height (mm): 23 mm
  • Insole Material: Not Applicable
  • Midsole Material: Injected Helion Superfoam (OBC)
  • Offset (in): 0.2358 in
  • Offset (mm): 6 mm
  • Outsole Brand: Other
  • Outsole Material: Rubber
  • Primary Colour: Grey
  • Product Weight (g): 238 g
  • Product Weight (oz): 8.3952 oz
  • Shoe Cut: Low-Cut
  • Shoe Size (UK): 8.5
  • Shoe Size (US): 8 1/2
  • Shoe Width: D
  • Sustainability: Recycled polyester, Performance
  • Upper Material(s): Recycled Polyester, Polyester