Men's Fast-Trac Nitro 4 mendorphinazura Ultra-lightweight construction makes it ideal

Ultra-lightweight construction makes it ideal for running

Helps manage moisture with mesh top layer and premium foam cushioning to keep feet dry and shoes fresh

enhanced flexibility

this sock separates the big toe and cushions the bunion

while the stretchy patent pending dynamic vamp adapts to your foot

Men's Fast-Trac Nitro 4 mendorphinazura Ultra-lightweight construction makes it idealWhen the trail turns steep and technical, the PUMA Fast TRAC NITRO 4 is ready to move. This nimble trail runner is built for speed and control on rugged terrain, helping you stay confident on climbs, descents, and everything in between. An advanced NITROFOAM midsole delivers high rebound cushioning without adding unnecessary weight, giving you a responsive ride that stays light on your feet. Underneath, deeper lugs paired with durable PUMAGRIP ATR