Revo Kingston 52mm High Contrast Polarized Serilium 6-Base Lens Technology Sunglasses, part of the Global Fit Collection Plastic frame Glasses lens Polarized Lens width: 52 millimeters Revo Blue Water lens produces a soothing tint while spectral sensitive filters highlight the critical green, red and yellow portions of the spectrum without altering natural colors 6-base lens technology for a more flat fit relative to your face, making them prescription ready Revo lightweight, shatterproof, polycarbonate, high-contrast, polarized Serilium Lenses provide visual acuity in bright conditions Scratch-resistant, ground and polished to virtually the same standard as a camera lens Made in Italy sunglasses with full rim, Round plastic frame and plastic lens