An upscale look for town and country, the Smith Boca combines classic aviator lines with subtle style and unparalleled performance. The recognized standard for polarized performance and protection, the Crystal Series matches eight optical-quality glass lenses with a variety of all-day frames made to fit any face. The clear choice of guides worldwide, our Crystal Series with Techlite polarized lenses make no compromises in the quest to be the best polarized sunglasses available. Photochromic (PC) lenses are available in some select lens colors. The PC lens changes tints according to how dark or bright it is outside, allowing you to see better as light conditions change. Smith Optics use Techlite Lens ; Glass is #1 for optical clarity & scratch resistance. Give it a specialty TLT grind to reduce the weight and you've got yourself the world's lightest Techlite glass lens. Chemically treated to increase shatter resistance. ANSI Z80.3 surpassing impact resistance and prismatic power. 100% UVA/B/C. Perfect for low impact hyperactivities and loitering with intent. Visible Light Transmission (VLT) is the percentage of available light allowed to reach the eye. Different lens tints offer specific VLT to enhance vision in different light conditions. Product Details Fit: Medium Frame: Wire Frame Construction Hinge Type: Spring Hinges Nose Pads: Silicone Lens: TLT 8 Base Techlite Glass Lens Coating: Anti-Reflective and Hydrophobic Interchangeable Lenses: No Polarized: Yes Warranty: Lifetime Warranty Shipping: Free! Smith Boca Lens Options • VLT 15-40% • medium to bright conditions Photochromic Brown *Best Seller* Ideal for bright to medium conditions. Increases depth perception while maintaining a soothing effect on the eye in a variety of conditions. • VLT 12-35% • medium to bright conditions Photochromic Gray *Special Order - Returns require a 25% restocking fee* Ideal for bright to medium conditions. Maintains true color definition in a variety of light conditions. • VLT 13-20% • medium to bright conditions Photochromic Copper Mirror *Best Seller* Our Copper tint combined with a subtle Silver Flash Mirror coating creates a performance based, esthetically appealing lens. Medium contrast while very comfortable and pleasant on the eyes. Optimum performance is in the medium to bright conditions. TLT Lenses: What are they? When you curve a lens it can bend the light passing through it and distort what you see. Tappered Lens Technology (TLT) contours the thickness of the lens so that light travels through without distortion. What you see is what you get? With TLT Without TLT UV Protection Linked to eye diseases, cataracts, and temporary conditions such as "snowblindness," Ultraviolet Radiation (UVA/B/C) is magnified by snow-covered surfaces. All Smith lens tints protect your eyes from 100% of these harmful forms of solar radiation.
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