Fits over prescription glasses. Flexible frame with hooded indirect ventilation. Built in antimicrobial protection provides an added level of cleanliness by inhibiting the uncontrolled growth of microbes. Fights stains and odor causing bacteria. Large wraparound polycarbonate lens protects eyes from chemical splashes or sprays. Adjustability Features: Strap; Material(s): Polycarbonate; Antifog: N/A; Fits: Over Glasses.