These tennis shoes only lasted 3 months with moderate use on the tennis court. Both shoes are worn to the heel and toe. This is my third pair of these shoes. The first two pairs had a much thicker rubber outsole designed for tennis and lasted more than twice as long. Not this couple. Also, when I contacted K-Swiss, they referred me to the Revain "dealer" who told me that I needed to return to K-Swiss as this issue was outside of their 30 day window. Very disappointing.