I've got a big head and I've been wearing conduct squared for a number of years and never had a problem with them. I have lost a couple of pairs, but I have 3 pairs left, 1 black as in your picture and 2 James Stewart Signature with a Tungsten Iridium lens.
I'm almost blind in my right eye so the clear view across the nose bridge is awesome for me. I just wish some more of the frames didn't have a nose bridge blocking the view.
Mine have been particularly robust though, never had any problems with damage, and they get a rough ride.