Men's Fast-Trac Nitro 4 SIZE:8.5 The next generation superfoam midsole

The next generation superfoam midsole delivers a responsive ride

Anatomical toe box for natural movement

Eco-Conscious Design – At least 30% recycled materials in the upper

25% Airlume combed and ring-spun cotton

Targeted muscle stabilization reduces fatigue and the risk of shin splints

Men's Fast-Trac Nitro 4 SIZE:8.5 The next generation superfoam midsoleWhen 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