Polarized, injection-molded polycarbonate lenses reduce 99% of visible glare Polarized lenses offer increased visual acuity and decreased eye strain Grilamid nylon frames are flexible and durable in all environmental conditions Megol nose pads are hydrophilic, so they absorb moisture and keep frames in place Microfiber cleaning cloth and storage bag included Best Use:   Casual Frame:   Nylon Lenses:    Polycarbonate