I ordered these , along with Dickies and Carolina brands , for my husband . He is a dock supervisor and walks the dock all night long , making it real tough on " toes " and  " heels ". I took out 2 pair of each to test which held up the best . The carhatt's came in last !!! Within 3wks. the heels were nothing but big holes . The toes did hold up , though . The dickies were in 2nd place , took longer for the heels to bust through , but by far the Carolina brand , was and still is the best . I've washed them many times and heels , toes and overall cushion on the sock is still present . I was really disappointed with the carhartt , but have noticed their shirts aren't lasting like they used to either.