I wear a size 8 - 8.5 women's shoe.<br /><br />These were my third pair of Fivefingers but unfortunately they didn't fit.  I ordered the same size as my two prior pairs, that is size 39, and the Alitza Loop fit great EXCEPT for the pinky toe.  The pinky toe housing was too short and too narrow.  All other toes fit normally, but I couldn't even straighten out my pinky toe in the tiny space allotted for it.  Please note, I have slender feet and short toes and a very small pinky toe so this really didn't make any sense.<br /><br />I was committed to owning these so I exchanged the 39's for 40's and same problem.  With the 40's the regular toes were too long and pinky toe space was still too small to straighten out my small pinky toe.<br /><br />Normal Alitza fit me perfectly in size 39, but Alitza Loop in 39 and 40 - I could barely get my pinky toe in much less move efficiently in these.  Sadly, they had to go back.  :,(