Update: 12-22-16
New slippers (2016) the sizing is correct. Don't need to order up a size anymore.

Update: 12-18-16:  My friend called begging me to help her find these slippers I bought her several years ago for her birthday.  So in searching I found they were here and in sizes needed, so I wasted no time ordering a pair for myself and my friend ordered a pair for herself and her sister for Christmas.  This will be my 3rd pair in 10 years.  I wore them all the time in summer and winter.  Totally wore out.  But had to wait a few years to ever find my size in stock.  LOVE THEM!!!!

Old review: No quite sure why size 10 is illusive.  Me and 2 friends LOVE these slippers.
They do run on the small size so you have to order a size bigger.  WE are
walking around with holes in ours. It seems like they have every size except
'10'.  Are you listening Slippers International? Retailers?  Anyone?

Get us addicted to these and then don't manufacture (enough, if at all) the
sizes.  If you do manufacture them, and they sell out the first day, does
that say 'Oh, we should manufacture more of size 10'.  We have been searching
for 2 years.