The vogel 20 has evolved and adapted to the ever changing market built for sports and leisure vogel 20 offers both a sleek design and technical features to enhance your performancemade 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 adjustable hydrophilic rubber ear and nose pieces for a non slip customizable and comfortable fitall tifosi optics eyewear provides 100 protection