Only worn twice. In excellent condition. Good as new! The Sun Emits Visible And Invisible Electromagnetic Waves. The Most Harmful Invisible Rays Are Ultraviolet (UV) Rays, Which Are Dangerous Even In Cloudy Weather As No More Than 10% Are Absorbed By Clouds. This Model Complies With The International Standards For Sunglasses. Acetate Frame Sturdy And Durable Frame Material For All Face Shapes And Sizes. Polarized Sunglasses 3, VLT 12 Eyewear With 100% UV Class 2 Polarized Lenses For Protection Against Glare: The Anti-Glare Design Improves Contrast In All Natural Environments And Ensures Optimum Visual Comfort.