Worn once and just have a touch of dirt on the bottom with no wear or tears or anything at all! Fantastic running shoes! An all-in-one neutral running shoe for any distance, the Velocity NITRO™ 2 is a lightweight and sleek update to the Run PUMA roster. Featuring NITROFOAM™ for exceptional responsiveness and ultimate cushioning, this upgrade to the original is a well-fitting and durable shoe for a smooth ride. Built for comfort at whatever speed, the versatile runner also provides enhanced visibility through reflective accents, so you can hit your stride on your time. PUMAGRIP offers multi-surface traction, from treadmill to track.