while the heel area offers an even more secure fit than the previous model

1 medium back storage

and the traction you need to stay upright on technical terrain

creating a unique cooling system

compression with 4-way stretch targets the area's most needing support

Women's Topo Athletic MTN Racer 4 Size:7.5 while the heel area offersThe Topo Athletic MTN Racer 4 is a performance tuned, high cushion trail runner built for fast and long runs on technical terrain. The 33 x 28 mm stack height offers generous cushioning and protection underfoot, while the ZipFoam midsole provides a lightweight and responsive ride. The upper now features a slightly snugger fit throughout for extra security on technical trails. The Vibram Megagrip outsole offers superior traction and slip resistance on