I usually wear a 10 or 10.5, and, of course, you can't get 10.5.  So I thought that since these shoes had a strap, an 11 would be just fine.  And, they are.  I think they are true to size.  They are VERY wide, though.  Again, since they have a strap, they work for me.  Some might not like the look since they are so wide.  There is a pattern on the inside sole.  My sister tried them on and she couldn't stand that feeling under her foot.  It doesn't bother me.  I've gotten lots of compliments on them--maybe because they are red?