Love my woolies. I also have some performance long johns that aren't much better then nylons. The wool pair  are much warmer. I normally have them on with undies and take them off when I come inside for the day. I let them air out overnight, wash them in washer on hand wash cycle every 3 or 4 wearings, let them dry draped over a hanger. This is my second year wearing them and they are holding up well. I got this brand because I needed a 3x. I sing their praises to all my friends.