They are absolutely fantastic, my feet have been warm all day, and normally my toes are cold, when I first put them on, I thought they were too thin, and weren't going to be any good, but they felt comfortable and the seem across the toes wasn't a problem, like any other socks, I was pleasantly surprised, I haven't tried washing them yet, but if that goes well, I will definitely be buying more, but I will have to save up,because they are very expensive, for socks.