Yes, I use the Air Max series for a number of years. I finally figured out they were the cause of my knee and for pain. They are too soft, IMO. Like walking and running on marshmallows. I switched over to the Lotto Raptor Ultra IV Speed and all my knee and foot pain went away. I had been using the Air Max series for 10 years and thought my knees were just getting worse. I had 2X yearly knee injections for years. Since switching over to the Lotto's my knees are so much better and I am hoping to not have to have knee injections as much or at all. Hope this helps.
