The lightweight running shoe that will do it all, no matter the terrain – the Fast-Trac NITRO 2 has dropped. It delivers a smooth ride and ground-feel on surfaces including including loose trails and gravel, thanks to a full-length NITRO™ Infused top layer embedded in the PROFOAMLITE midsole. Add to that the durable PUMAGRIP-ATR outsole and integrated eyestays for a snug fit, along with details at the toe that help drain humidity and protect from debris – and you're golden with this ground-breaking shoe made for all runners in all four seasons.