TR90 frame Tri Acetate Cellulose lens Polarized Scratch Resistant Coating coating Lens width: 60mm Bridge: 22 millimeters POLARIZED HD VISION LENS - Not only protect you from harmful UV rays, they're built for maximum impact resistance, making sure debris doesn't harm you or hamper your performance. The sports sunglasses designed for driving, running, fishing, racing, skiing, climbing, trekking, etc. TR90 UNBREAKABLEA AND SUPERLIGHT FRAME - TR90,a lightweight, durable polymer with extreme bending strength known for retaining its shape.The high elastic material make the frames become impact, scratch resistant, durable and unbreakable.