The most energetic spike on the track. When it comes to cushioning, we prescribe to a very strict, “more is more” policy. Built to the maximum World Athletics’ standards, the new Cielo FLYX breaks the mold with 25mm of bouncy, high resiliency PEBA foam. We’ve employed a composite plate that doubles as both a midsole propulsion plate and outsole spike plate, along with an ultra-breathable, engineered mesh upper, to deliver an elite race spike that will tackle anything from 1500 meters to 10K and every distance in between.