- Synthetic
- The Ultrafly, named 2016 Runner’s World Best Debut, is perfect for runners seeking cushioning and light support.
- It features strategically placed printed overlays and molded foam heel stays to secure the foot over a 28/23mm, 5mm drop platform.
- The 3-piece EVA midsole provides light guidance and feedback through the gait cycle.
- Topo Athletic recommends sizing up half a size.