Three-Point Fit: Comfort and performance that holds lenses in precise optical alignment. Durability and all-day comfort of lightweight, durable stainless steel frame material. Frame suitable for medium to large faces. Hollowpoint hinge UV protection of Plutonite lens material that filters out 100% of UVA / UVB / UVC & harmful blue light up to 400 nm. Glare reduction and tuned light transmission of Iridium lens coating. Optimal precision and impact resistance that meet or exceed ANSI Z80.3 optical and basic impact standards. Optimized peripheral vision of 6 base lens curvature. Maximum clarity at all angles of vision with patented XYZ Optics IMPACT PROTECTION Oakley lenses are designed and tested under extreme high mass and high velocity circumstances to ensure uncompromising protection across a wide range of demanding conditions. PRIZM Prizm is a revolution in lens optics built on decades of color science research. Prizm lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility. PRIZM GREY Light Transmission: 17% Light Conditions: Bright Light Contrast: Increased Base Lens Color: Grey Oakley takes a classic to the next level with the Holbrook Metal. Lightweight, sheet-metal frame takes durability to the next level. Metal bolt accents on front of frame. Metal Oakley icon accents on side arms. Three-Point Fit system holds lenses in precise optical alignment for supreme comfort and performance. PLUTONITE lenses filters out 100% of harmful UV rays. 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. Glare-reducing Iridium lens coating helps balance light for enhanced clarity. Imported. Measurements: Temple Length: 133 mm Frame Width: 140 mm Lens Height: 42 mm Weight: 1.2 oz Lens Width: 54 mm Bridge: 15 mm