Men's Ray-Ban Rb4264 58 - Brown - Sunglasses Performance materials meet sleek style in these new Ray-Ban reg; sunglasses from the Tech collection. A retro silhouette and keyhole bridge give these tortoise square sunglasses an edgy cool vibe. New Chromance lenses in polarized purple mirror take your view to the next level, making colors clearer and brighter. A six-layer, anti-reflection treatment turns up contrast to enhance texture and get rid of glare. Fully adjustable nosepads add comfort and allow for a centered line of sight.