I ordered the XL version for my boyfriend. The socks were washed before he put them on. They came out of the dryer (low heat setting) and were the same size as the ones I bought (medium/large). He can’t even wear them because they are too tight.
Pros
Headline says it all. It's super soft, warm, comfortable. It fits me and I enjoy wearing them.
Cons
Some people may prefer socks made of other materials besides rayon