I have to start by saying this was my favorite tennis shoe - ever.  I bought 4 pairs when they became hard to find in my size.  I am currently alternating 2 pairs and have been wearing them for about 4 months.  While playing tennis the other day, I felt something irritating the side of my foot.
 I looked down to see the side panel with the stripes completely split from the rest of the shoe on one end - I checked the other shoe to see the same issue.  I've never had this happen with any shoe. I contacted K-Swiss and have heard nothing back.  Really disappointing.  I have one more pair in the box and am unsure if they are safe to wear for tennis.