Spy Optic Bowie Flat Sunglasses, 56 mm (Smoke Tortoise) Imported Plastic frame Plastic lens Polarized 100% UV protection coating Lens width: 56 millimeters Bridge: 17 millimeters Arm: 145 millimeters Constructed from virtually indestructible Grilamid with sturdy 5-barrel hinges Features the Happy Lens; Available with Trident polarization 6-base polycarbonate ARC lenses 100% UV protection FRAME MEASURES: 56-17-145