Purchased size medium for 48" tall, 6-year-old son.  Didn't look like much when I took it out of the box, but it is very cute on.  The hat really cannot be used.  It is very small (fits my 2-year-old.)  So, he wears another Santa hat we already had.  The pants and the boot covers are not attached as one piece - the pants are knickers that are supposed to be tucked into the boots.  I sewed the boot covers to the pants.  So, other than those inconveniences, it was a great buy and he has had lots of fun with it.