Better fit and function than I expected, it is by no means an M-frame from a certain manufacturer I am probably not allowed to say but its the next best thing for easily replaceable eye protection.
Why do I mention the M-frame? Because in my 20+ years of wearing protective eye-wear, that design provided better coverage of your eyes than any other (edge to edge and top to bottom).
These are in the ballpark of that coverage but not close enough.
Conforms to the head
ConsNot as much physical coverage of my eyes as I'd like