So hard to find women's regular size heavy weight black socks that are pure black. They are a nice weight and thickness to keep my feet warm during the winter. I often wear these at night to keep my feet warm, the tops aren't as tight as my wigwam what socks. I wear a women's 9.5 shoe and these socks in the 5 - 10 size are a near perfect fit for me. I plan on buying the white version of these next summer to replace my wigwam socks. I've never had socks fit this well before. I've been wearing these for about nine weeks. They don't get too loose or feel too tight when I wear them for extended periods. They wash and dry just fine. I have not noticed any degradation or wear on the socks yet. I do not baby these: washer and dryer regular cycles. I've been too weak to do laundry lately so they probably have been getting a little heat abuse since hubby will leave the entire load in dryer until done. The blend (74% Cotton, 16% Nylon, 9% Polyester, 1% Spandex) seems to be just right to make them fit well, hold their shape without making my feet sweat too much (which leads to athletes foot). They feel like all cotton socks but perform better than all cotton socks.