Category 4 lenses. Not suitable for driving or road use. The darkest classification available, made for strong sun.The Aether Collection · Limited EditionAether Luxe is the most formal frame in the collection. High-quality metal, built for longevity, and light enough to forget you are wearing it.Like every piece in the Aether Collection, it was designed to complement the Antara wardrobe rather than compete with it: refined eyewear balancing form, function and versatility.Details Precision metal frame, ultra-lightweight Category 4 lenses · high UV rated · CE certified Black colourway Limited edition · Designed in Melbourne Certified protectionEvery Aether lens is high UV rated and CE certified. The category number describes how much visible light a lens filters, not UV. UV protection is full across the collection, however light or dark the tint looks.Category 4 is the darkest classification. It is made for strong sun, and it is not suitable for driving or road use, day or night. If you want one pair for everything, take the Flex or the Clear instead and we will tell you so.Supplied with Antara case and cloth.