Lenses are categorized from 0 to 4. Our sunglasses fall under category 3 and work best in above average light conditions. Our Clear lenses fall under category 0 and our Blue Light Blocker lenses fall under category 1. Both our Clear and Blue Light Blocker lenses are not sunglasses and offer very low sun glare reduction.
If you have additional questions regarding our sunglasses, please contact our Customer Support Team here.