I had a Wall Proactive W4 in large, the Fit 3 fits similar. Cons: There are a few of the foam edges that I think are sharp in the helmet that I want to trim down. (mostly on the top of the head/ outside corners above the temples. I felt like the Wall had better foam around the cheeks. The chin cup on this is also odd compared to the Wall, and I can't seem to get the fit right yet. But I'll give it some more time. Also the fiberglass seems to be thin compared to other brands, especially in the chin. I wear a dangler though so I am not worried about it chipping like other people mention. Pros: Fiberglass mask for under $400, feel safe in it, great vision out of the certified cage. I think this is one thing that is not advertised well enough with this mask. The cage has an oval shape to the bars which makes them very narrow when you look out. I actually liked the certified cage better than the cat eye.