Let me start off by saying that i have a big noggin. My head is size 25 1/2 inch around which equates to an 8 hat size. This is typically a size 2xl hat. This balaclava is not even tight on my head (good for me, probably bad for most people). Also, the wool is a fine type material and not super heavy, which is just what i was looking for. I bought this specifically for camping and would wear a heavier 100% wool watch cap on top (DLA 835-2672-9201 , RN 93084). My suggestion is, if you have a large heard, and need a good balaclava, this will do.