Mossy Oak Ramrod Sunglasses Composite frame Composite lens non-polarized Lens width: 1.8 millimeters 99.9% UV protective lenses Polarized, 1.0mm thick TAC lenses (on Brown and Smoke Polar lenses) SST de-centered lenses help correct prismatic effect, and measure 1.8mm at optical center of lens (on regular Brown and Smoke lenses) Megol performance temple tips and nose pads for maximum grip and comfort