This is my second pair of Keen sandals. My first pair finally gave out after nearly 10 years of heavy warm weather use. I ordered these with high expectations, despite some negative reviews. I ordered a 9, which is what my previous Keen sandals are and what I wear in every other shoe that I own. My foot is not wide, nor thick, it's just a regular old 9. However, the size 9s that I received measure out around that of an 8.5 (actually slightly smaller). Not only that, there is hardly any arch support in the footbed and it feels flat. Lastly, my foot barely fits in these and I found that after having these on my feet for about an hour, my feet and ankles started tingling a bit. I guess they were cutting off circulation in my feet.<br /><br />I don't normally write reviews, but these are just not nearly as nice as what this company made historically. I guess I'll be searching for a new sandal manufacturer.