This model is part of Oakley’s **Anorak** line, which blends sporty performance features with an everyday lifestyle design. The sunglasses feature Oakley’s lightweight O Matter™ frame material, Prizm™ lens technology for enhanced color and contrast, and Advancer airflow technology that helps reduce fogging during activity. These sunglasses have not been worn more than 10 times. I didn't like the way that they looked on my face so I would pick a different pair over these.