Preowned excellent condition. There is a little dirt on the soles of the shoes. I had to look hard to see the dirt.These are very clean!DYNAMOTION FIT creates an upper that moves with your foot seamlessly.Infinity Wave is the next level of Wave technology with a more visible and effective construction. The ultimate Wave features unrivaled cushioning and improved durability by absorbing and dispersing the impact at foot strike.New Premium Sockliner