61mm Polarized Square Sunglasses

This is the Ricondo model which is the latest model in the Costa Ricon line. It has slightly smaller lenses than the original Ricon and has rounded (cateye) lenses versus the square lenses on the Ricon and Riconcito models. I like the look of these glases, but the temple arms flare out and curve in and do not seem to fit my head securely. Even though they have nonslip nose and ear pieces, I am still concerned about them slipping during everyday wear or for sporting activities. They otherwise appear to be well-made with the 580G glass polarized lenses and spring hinges. If there was less curvature in the temple arms for a more secure fit I would have kept them.