Pro Optic Compatible Optional removable dioptric insert for sports glasses. The glasses can be used without restrictions even without an insert. Certificate We guarantee proven security. TR90 Extremely light yet very durable high-tec material with above-average flexibility and shape memory, increased wearing comfort. Non-slip surfaces Anti-slip beams or sides. They prevent the glasses from slipping, which hold them perfectly on the face. Adjustable beam Greater wearing comfort, the beam can be adjusted to the shape of the nose. Polycarbonate Almost unbreakable lens material ensures greater eye safety. Hard case Spectacles or replacement lenses are safely stored in a sturdy case. Soft case In the soft microfiber case, the glasses will not be scratched and, moreover, the glasses can be cleaned well. Platinum Eyeglass lenses covered with a special mirror layer. They greatly limit the amount of light that enters your eyes by simply reflecting much of it. Today it is possible to have this mirror layer in all the colors of the rainbow. The Platinum mirror layer is also abrasion resistant. DESIGNED IN CZ All products are developed and designed in the Czech Republic