I’m sure everyone’s face shape will dictate which frames work best for them, but I can certainly say that these Costa Permits feel like they’re tailor-made for my face. The inside of the frame is lined with Hydrolite Polymer which creates a snug fit and very “unified” feel on my face. They stay snug, even running 70 miles per hour in my bass boat, and never slide down my nose or temples. With other sunglasses I’ve worn, I would often notice significant ear fatigue at the end of the day; the arms would dig into the tops of my ears and at the end of a long day, it would actually feel like I had bruises.
I have worn these glasses for 12 hours at a time and never felt any discomfort whatsoever and I forget I’m even wearing them.