Tifosi eyewear aethon 3 lens interchangeable sunglasseschange up your sunglasss coverage with tifosis aethon 3 lens interchangeable sunglasses that come with three different lenses, with three different light transmissions that suit a range of environments. The polycarbonate lenses offer the maximum protection from impacts and abrasions with glare guard technology that ensures full uv protection.the durable, lightweight grilamid tr 90 frame construction that is flexible and comfortable for long time wear. To stabilise the sunglasses positioning they come with adjustable ear and nose pieces with hydrophilic coatings.featuresinterchangeable lensescomes with three different lensesadjustable ear and nose piecescomes with protective caseglare guard technologygrilamid tr 90 frame constructionhydrophilic rubber componentsoptically decentredpolycarbonate lensesfull uv protectionventilated lensesbuy tifosi eyewear sport sunglasses from chain reaction cycles, the world's largest online bike store.