I DON'T KNOW ABOUT YOU BUT I SEEM TO HOLD ON TO SOME THINGS WAY PAST THEIR USE BY DATE. PRIME EXAMPLE...MY BRIGHT ORANGE RUNNERS CIRCA 2009. WHEN I REALISED THAT MAYBE MY KNEES WERE HURTING BECAUSE THE SHOES WERE FOUR YEARS OLD I DECIDED IT WAS TIME TO BUY A NEW PAIR. AND OH MY GOD A NEW WORLD OF STYLISH FITNESS WAS BROUGHT TO MY ATTENTION. MY NIKE FREE RUN 5.0S HAVE OPENED MY EYES TO THE FACT THAT YOU DON'T HAVE TO LOOK LIKE YOU HAVE WALKED OUT OF A DUMPSTER WHEN TRAINING! I WILL DEFINITELY BE STOPPING EVERYONE IN THEIR TRACKS WEARING THESE SHOES!