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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
For days when you want some extra protection
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
a new outsole design features strategic rubber zones to enhance flexibility and increase traction
why change it it
MTN Racer 4 Fall 2025 For days when you wantMENS 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
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