It's seems awful hard these days to find nice dress socks without having to sell a kidney. After much review I finally  purchased these to help supplement some basic dress socks I bought at Meijer years ago (which are still going strong, by the way). After my *first* wear and wash, one sock of the pair was already showing loose elastic. They are very comfortable, and I'd better enjoy that aspect since they won't be around for long.
**Update** So far only one sock has begun to show an elastic thread, and the others are doing well.