Under Armour Unisex Sierra Sunglass Imported Composite frame Composite lens Non-Polarized 100% of UVA, UVB and UVC Ray Protection coating Lens width: 64 millimeters Lens height: 45 millimeters Bridge: 16 millimeters Arm: 140 millimeters ArmourSight advanced lens technology is precisely engineered to provide ultimate optical clarity and impact protection Ultralight ArmourFusion frames are built for maximum strength and durability.