The Topo Mountain Racer 2 Trail Running Shoe takes on technical trails, in a lightweight, nimble, and rugged package. The second edition features a new mesh upper with increased breathability. An external TPU heel counter keeps the foot locked in over the platform for a stable ride. The updated 3-piece midsole offers light guidance and now features ZipFoam for additional response underfoot. The durable Vibram Megagrip outsole delivers the ultimate grip on any surface, wet or dry. Topo Athletics roomy toe box allows toes to align in their natural position for better balance and stability while it's secure midfoot and heel gives a responsive feel no matter the terrain.