At race weight with daily-trainer durability, the Topo Cyclone 3 makes fast feel natural. With a full Pebax Powered® midsole, this super lightweight trainer delivers explosive energy return for your fastest efforts. It has Topo’s signature wide and anatomical toe box that lets your toes splay, while the lightweight upper gives you a secure midfoot lockdown and keeps your foot centered over the peppy midsole foam. Details: Upper: Light, durable mesh disappears on foot while maintaining breathability. Topo’s signature anatomical toe box lets your toes splay for natural movement at speed. Midsole: Full-length Pebax Powered® foam gives you an energetic ride with a stack height that provides just enough cushioning to keep you comfortable and connected to your stride. Outsole: Strategic rubber placement balances durability and weight savings.