I ordered 1/2 size smaller than my husband wears (as website says to do) and they are a perfect fit! He loves them and they are very comfortable. We like that these come in sizes, such as 9, 10, etc. The pair of Crocs my husband had before (a different style) only came in L, EX L, etc. and it was hard to get a pair that fit correctly when you wear a 9 1/2 shoe.