I've been playing tennis in these shoes for about 4 months now. They have held up REALLY well and the soles are now showing wear. On average I play tennis 3 days a week for 2-3 sets. There is a slight separation that started from the side but doesn't appear to be severe. These shoes are quite heavy compared to lightweight tennis shoes. However, I believe it should be done and the solid quality they appear to be has meant that they last and wear so well. Overall wear was fairly even and durable.