Optic Nerve Biggerton Casual Sunglasses - Tortoise/Brown - Designed with movement in mind, the Biggerton is designed to accommodate larger face shapes and features anti-slip rubber on the nose and temple to keep the frames secure during any outdoor adventure as well as polarized lenses. Features: UV Rating: 100% UVA/UVB Protection; Lens Type: Polarized; Design: Active Sports; Warranty: Lifetime; Frame: Durable, Lightweight;