Revo Unisex Unisex RE  3089 Groundspeed Rectangular Polarized UV Protection Sunglasses Imported Metal frame Plastic lens Polarized 100% UV protection coating Lens width: 59 millimeters Lens height: 43 millimeters Bridge: 19 millimeters Arm: 136 millimeters Case included Lenses are prescription ready (rx-able) Crystal lenses are Scratch-resistant and ground and polished to almost the same standard as camera lenses. 6-base lens technology More flat relative to your face