I agree with OKW Lover...I have found that my clog-style Crocs gave me blisters. My flip flop Crocs never gave me a problem. There are a few other "oddities" about Crocs that I heard and I learned the hard way. One is that I left my Crocs out on my back stoop for a bit, in the summer sun, and they actually shrunk! But don't worry, I wore them a few times, and they flattened out again.