Dear friend, this women shoes is standard size,
if your feet long is 23 CM, need choice the size 5.5,
if your feet long is 24 CM, need choice the size 7,
if your feet long is 25 CM,need choice the size 8.5,
if your feet long is 26 CM, need choice the size 10,
if your feet long is 27 CM, need choice the size 12.