The MTN Racer 4 is Topo Athletic's trail racing specialist, but its 33/28mm ZipFoam™ midsole offers enough cushion and pop for ambitious newcomers ready to race off-road. The Vibram Megagrip outsole—the gold standard in trail traction—delivers tenacious grip on wet rock, roots, and loose dirt. The 5mm low drop and wide toe box honor Topo's natural-running philosophy. At 295g, it bridges the gap between protective trail shoes and speed-focused racers for runners transitioning from casual trail to competitive events.