The Topo® Athletic Mtn Racer 4 is a performance-tuned, high-cushion trail runner built for fast and long runs on technical terrain. Designed with a snugger upper fit for added security, it keeps you steady on rugged terrain. The Vibram® Megagrip outsole enhances traction and slip resistance across all surfaces, while the specialty FKT Insole provides a responsive feel and optimal drainage in wet conditions.