I already had some socks that were supposedly the same product, and I like those and wanted more. The new socks are different: thinner throughout and quite thin on top of the foot. Still, they keep my feet warm, dry, and comfortable throughout the day, and I like them. The new ones don't stay up on my calf as well as the older model, and all of them (new and old) fray and get loose threads after even the first wash. So far, though, this hasn't affected them much -- just a little annoying.