My son wanted moccasin-type slippers for Christmas and after researching them I decided to buy Old Friend's.  He is a size 13 with a narrow foot.  They were too big in general length and his heel flopped up and down.  I received them VERY quickly!  After returning them and ordering another in size 12 and the lighter color (which my son preferred and rec'd in 2-3 days), They are wonderful!  Now he wears them everywhere.  Even to school one day-he is a HS Jr. The rubber sole allows him to wear them outside-he even walked all around "buck town" Chicago looking for a breakfast place.  He didn't plan on wearing/walking in them that far, but they were great!  I HIGHLY recommend these to any man who likes to take his shoes off, lounge around and even go outside in warmth and comfort!