The Vibram® Megagrip outsole features a brand-new design with 4 mm lugs for excellent traction and grip

now with more cushioning and an exciting new look

Women The perfect entry level trail runner returns in a new package from the ground up

MEN We freshened it up from top to bottom to amplify the comfort and light stability that's been the foundation of Ultrafly from the start

The Vibram® Megagrip outsole provides reliable traction and durability

MTN Racer 4 Ultrafly 5 // Men The Vibram® Megagrip outsole featuresWOMENS A fan favorite for race day and daily training, the Topo Athletic MTN Racer 4 offers rugged performance on technical trails. A 33 x 28 mm platform delivers underfoot cushioning and a protective barrier between you and the ground. Our new upper is fine tuned for performance on technical terrain. The MTN Racer 4 now features our FKT insole, allowing for faster water drainage and added rebound, while our improved gaiter attachment system keeps out