These are the widest frames offered by Costa. I have a big noggin and a wide face. I can wear Costa Fisch, Permit, and Reefton Pro. I thought the Permit was the widest frame (140 mm) but the Spearo XL is wider (142 mm). The 580G (glass) is a really good lens. They are not quite as good as they once were (the older ones used to make colors lusher such as greens) but still quite good. If you have a wide face and large noggin, I really recommend these.