Frame material: Rilsan® Clear Rnew® 45% Bio-Based material, making use of natural renewable resources (derived from castor oil) which do not grow at the expense of food crops and contribute to reduced CO2 emissions Polarized Polycarbonate Lens Japanese Polarized film Anti-Seawater coating on both sides of lenses Anti-Reflex coating inside of lens Filter Category 3 (High protection against sunglare) Lens Category 3 UV400 Base curve 8 Abbreviation explanations: Frame Color: Shown in model name LB = Lens Base LM = Lens Mirror AR = Anti Reflex coating on inside of the lens