Men's OO9417 Holbrook XL Square Sunglasses, Matte Black/Prizm Sapphire Polarized, 59 mm - Taking inspirational cues from the classic film and music stars, the Holbrook XL sunglasses never look out of place. Plutonite Material lenses filter out 100% UV rays. Prizm lens treatment controls light transmissions for maximized contrast and clarity. Polarized lenses on certain models helps to cut glare; see the color name for details. Six-base lens curvature offers optimized peripheral vision and side protection. Offers the protection and impact resistance that meets ANSI Z87.1 basic impact standards. O Matter frames are formulated for high durability and high flexibility for improved safety during impact. Maintains resistance to ultra-violet radiation, humidity, thermal shock, and chemical exposure. Three-Point Fit system holds lenses in precise optical alignment for supreme comfort and performance. Metal bolts accents on front of frame. Metal icon accents on side arms.