These extra-thick socks (+12°) will warm you up all the way to your toes. The "fleece-lined, extra-thick fabric" keeps you warm. These crew-length socks cover your entire foot, from toes to calves, at 22cm. They are gentle on the skin and will warm your entire foot. Non-slip grips on the bottom make them safe to wear on flooring. I bought them last December and only used them 2 or 3 times, so there are no noticeable stains or damage.