Pinnacle tech creates a propulsive ride fine-tuned for marathon speed. Fine-tuned for marathon speed, the Alphafly 3 helps you push beyond what you thought possible with three innovative technologies. A double dose of Air Zoom units works with a full-length carbon fiber plate to help launch you into your next step. The ZoomX foam midsole helps keep you fresh from mile 1 to 26.2. Time to leave your old personal records in the dust.