Lacoste Sporty Square Sunglasses in Satin Military Green L139S 318 60 Composite Imported Metal frame Plastic lens Non-Polarized 100% UV protection coating Lens width: 58 millimeters Lens height: 44 millimeters Bridge: 20 millimeters Arm: 133 millimeters Made of monel metal that is lightweight and durable A spring loaded hinge to keep orignal adjustment for a longer lasting fit Polycarbonate lens that is lightweight and impact resistant with a scratch resistant coating Case Included Lenses are prescription ready (Rx-able)