- New
The On Cloudspark Iron Black is designed to power powerful takeoffs and maximize air time. Weighing in at 282g, it features a dual-density outsole and Speedboard® for efficient energy return. The 100% recycled polyester engineered mesh upper molds to the foot, providing a lightweight, breathable feel. This design is based on data from a variety of runners, optimizing performance for different types of runners. The Speedboard® is lightweight and flexible, providing maximum propulsion, while reflective details enhance visibility. With less ground contact and more air time, these shoes are ideal for those looking for innovative, high-performance sports footwear. Buy them in our store or in our stores in Barcelona.