I was very hesitant on buying Chacos because they are pretty expensive. I caught them on a sale so I couldn't pass them up. I bought them bc we are going on a cruise soon, and I wanted a sturdy sandal that I could wear at the ports. I usually can wear anywhere between a 8.5 - 9.5 size shoe, so I ordered a 9 thinking it would be fine. They ended up being a little too big, so I plan on sending them back and getting an 8. The little bit of walking I did around the house just to see how they felt proved to me that Chacos are worth it. Super comfortable. I just wish that they weren't sliding off of my foot! No compaints, but half sizes would be awesome though.