My first pair of shoes bites the dust!

I was going to post the brand and model of shoes that I found to be supportive enough for walking on the treadmill, and discreetly black in color to not look too "sneakerish". Unfortunately, I realized that I have worn a hole in the heel where the back of your heel meets the inside of the shoe! I certainly didn't feel my heel slipping up and down but it must have been. I'm now trying some shoes called Propet, that I just received from Zappos in the mail today. I was delighted to see that they appear to have soles made out of similar material to Crocs, which are my most favorite shoes for comfort. People seem to have a love/hate relationship with Crocs. The wierdest comment I have read online about Crocs actually described people that wore them as "having obviously given up on finding a mate." The person that made that comment is also probably able to wear 6 inch heels without the slightest bit of foot pain. I, dear sir, am not one of those people. I'll let you know how these shoes fare on the 'mill as I pass the 100 mile mark very soon.