Thank you for looking. These were used by a child, so they show signs of wear. One is Heattech and the other is Extra Warm, but the child said the fabric thickness isn't that different, and the warmth is about the same. They were purchased at different times. Both have thinning around the knees. Please see the photos where I've spread them open. There are no holes yet, but the fabric is thin. I'm selling them at a low price, so please refrain from purchasing if you are concerned about minor details. I will send them in simple packaging.