I purchased some Black ones last fall to try them out.
I like them a lot , they don't fall down , comfy , I have washed and dried them several times and haven't shrunk. Like the thought of lifetime guarantee.
I have snagged one on a chair leg and pulled a thread , but still seems ok after a few washes, That was on me not the quality of the sock.
So, I brought more pairs , this time the gray ones .
So far they are everything as advertised.