On Running Cloudspark Flame | Black Made with more runners in mind. This high-propulsion shoe is ideal for road runs – engineered for people who run in a seated position. Expect max air time and powerful take-offs. Weight: 235g Dual density sole with nylon blend Speedboard® for energy return you can feel Upper made from mesh that molds to your foot Light and breathable Diverse, data-driven design Engineered mesh upper made from 100% recycled polyester Speedboard®: light and flexible nylon-blend for max propulsion Reflective details help keep you visible in low light Cloudspark encourages short ground contact and more air time
