Costa Del Mar Sunglasses - Islamorada- Plastic / Frame: Tortoise Lens: Polarized Sunrise 580 Polycarbonate ACETATE frame Glass lens Polarized Lens width: 57 millimeters Bridge: 15 millimeters Arm: 125 millimeters Frame Material: Plastic Lens Material: Plastic Lens Width: 57mm Bridge: 15mm Arm: 125mm