These seem to be VERY high quality socks. I usually buy darn tough, point 6, and smartwool socks. I have some of Meriwool's shirts and love them so I decided to try the socks. Out of the box these may be some of the highest quality socks Ive owned. I have not put them through any tests other than unpacking, putting them on my feet, and going to work. Time, some washings, and some hikes are really the crucible that these have not yet seen. So far I am very impressed.