Under Armour Nitro Youth Sunglasses Imported Composite frame Mirrored lens Polarized 100% of UVA, UVB and UVC Ray Protection coating Lens width: 64 millimeters Bridge: 21 millimeters Arm: 125 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.