I bought these slippers for my 92 year-old father after he recently moved in with me.  He was constantly trying to keep his feet warm...two pairs of socks inside his shoes while out and about, wrapping his feet in a wool blanket if relaxing at home...and nothing seemed to help.  One day, while shopping on Amazon for another item, I noticed these slippers.  After looking at the product and reading the reviews I decided to buy him a pair.  These slippers have really made a big difference in his life!  He went from miserable to marvelous in one day.  I don't think I've heard him say his feet were cold ever since.  He wears them everywhere since the slippers are designed for indoor/outdoor use and we live in Southern California.  I am so happy that this was such a quick and simple fix for my Dad's well-being and grateful to Amazon's giant merchant base in which to shop!