I just received the ECCO Yucatan Sandal in the mail today. It has to be the most comfortable sandal I have ever owned. It has great arch support and the sole feels a lot like that of a running/cross training shoe. I actually found the sandal to be true to size and am glad that I did not go up another size...although I go from a 10 to a 10.5 and got the 10-10.5 sandal. People are also complaining that the front strap is not adjustable...well it is, but it only works to make it a little tighter on the toe...not looser. For me, it was perfect as I needed to adjust the front toe to be a little bit tighter. It feels like a sandal I could walk in for a long time.