I bought this for myself (a female) after seeing some reviews saying that the fit is small.  My husband tried it on, and it fit his large head, but tightly. It is  stretchy fabric. It is somewhat difficult to get on initially because you have to navigate the face cover, which is stitched on. The face fabric is breathable, and stretchy enough to pull down under your mouth or chin if you want to.  It fits me just fine as well, also snug. The top head flap falls a tiny bit low on me, so I have to push or fold it up as to not have any vision obstruction. My ears stay warm while wearing it. We took a walk last night in zero degrees, and my eyes were the only thing that got cold. :)  When I took off this hat, there was a real difference in my face temp in the covered vs uncovered part.