The FAST-TRAC NITRO 2 offers a smooth running and ground feel on a variety of surfaces. Equally suited for trails, gravel and mixed terrain, this lightweight running shoe will take you anywhere you want to go. The Fast-Trac has a full-length NITRO top layer embedded in the ProFoam Lite midsole. PUMAGRIP-ATR is a more durable version of our award-winning rubber and provides excellent grip in mud, snow or rocky terrain. The upper features a visually dynamic pattern and a high material thickness. The integrated eyelet welt hugs the foot snugly for a secure fit. A padded tongue and collar provide comfort, while the toe box offers both drainage and protection from debris. The FAST-TRAC NITRO is an all-terrain solution that lets you run protected and connected to the ground, while providing breakthrough value and styling for all runners in all four seasons.