Made of grilamid tr 90 a homopolyamide nylon characterized by an extremely high alternative bending strength low density and high resistance to chemical and uv damage hydrophilic rubber ear pieces for a no slip fitall tifosi optics eyewear provides 100 protection from harmful uvauvb raysweight 24gfit s lframe type full framerx options direct fithydrophilictr90bag case includedincluded lenses smoke polarized