An all-in-one neutral pair for any distance, the Velocity Nitro 2 running shoes are a lightweight and sleek update to the Run Puma roster.?Featuring Nitro Foam for exceptional responsiveness?and ultimate cushioning, this upgrade to the original is a well-fitting and durable shoe for a smooth ride.?PumaGrip offers multi-surface traction, from treadmill to track. The upper of this pair is made with First Mile yarns that contain recycled post-consumer plastic.