The Topo® Athletic Cyclone 3 sneakers are a lightweight speed trainer built for up-tempo runs and racing up to the half marathon distance. The 28 x 23 mm platform features a full Pebax Powered® midsole for a fast, energetic, and lightweight ride. The upper now features a more durable mesh while still offering excellent breathability and a fit so light it disappears around the foot. The outsole features strategically placed rubber to maximize durability just where needed while minimizing weight.