The On Running Cloudflow 5 Arctic Stone combines elite-level performance with sleek, aerodynamic design for runners seeking speed, precision, and comfort. Its engineered woven upper in cool arctic blue and stone grey tones offers exceptional breathability, adaptive flexibility, and a secure fit that supports the foot during high-paced runs. The lightweight construction minimizes distractions, while targeted reinforcements add stability without extra bulk. Beneath, the CloudTec® midsole made from Helion™ superfoam delivers a finely tuned balance of cushioning and responsiveness, ensuring soft landings and powerful takeoffs with every stride. The Speedboard® plate integrated through the midsole enhances energy transfer and forward propulsion, promoting a fast, smooth ride ideal for tempo sessions or races. A durable rubber outsole provides dependable grip and traction even on wet surfaces. Finished with reflective detailing and subtle On branding, the Cloudflow 5 Arctic Stone embodies Swiss-engineered efficiency—designed to feel weightless, fast, and fluid from start to finish.