Material Composition: Tested To En Iso 12312-1-2013 Category 3 General Purpose Sunglasses Description: Foldable to a compact size, for convenient sun protection when out and about. - Newly updated with an anti-fog coating. - The plastic portion is made of approximately 45% plant-derived material. - Protects your eyes from fatigue caused by blue light from PCs and smartphones, reducing it by 25%. - UV400 lenses block 99% of UV rays. - Wellington-style sunglasses that can be folded down to a compact size for convenience. - Frame size anyone can wear. - Great for a variety of situations.