Maui Jim Good Fun GS871-02 sunglasses pair a lightweight nylon butterfly frame with SuperThin Glass polarized lenses for crisp optics and reliable glare reduction. They are designed for everyday sun protection and clear vision while driving or outdoors. Key attributes: Black | Tortoise | Nylon | PolarizedPlus2 lens technology for glare reduction and 100% UV protection | SuperThin Glass lenses for crisp optics | Neutral Grey lens option for high light reduction | Embedded non-slip rubber nose pads | Spring hinges | Rx-able | Butterfly / square silhouette | Gloss finish | Playful color application | Dimensions & fit: Lens width: 57 mm | Lens height: 51.5 mm | Bridge: 19 mm | Temple length: 145 mm | Composition & care: Nylon frame | SuperThin Glass lenses | Rubber nose pads | Clean lenses with the included microfiber cloth and store in the protective case when not in use.