I bought these for  my 13-year-old son, who is a mens size 7.5 in shoes.  A previous reviewer suggested ordering up a size, and since these don't come in half sizes, I ordered a size 8.  They are WAY to big.  My son's heal constantly slips out.  He needed these for an occasion, so he wore 2 pairs of socks.  But, I suggest ordering down a size if you are between sizes.  Otherwise, these are great, stylish shoes that can be dressed up (worn to church with khakis, etc) or down (worn with shorts/jeans.)

Update:  I re-ordered these in a size 7 and they are perfect!  Will save the 8's for when his feet grow.