Popular Science - - GOODS -

AL­MOST ANY PAIR OF SUN­GLASSES, EVEN THOSE cheapo gas-sta­tion shades, can make you in­stantly look cooler. De­cid­edly less cool: low-rent spec­ta­cles that can’t cut the glare of a day at the lake, or pre­vent UV rays from slowly cook­ing your eye­balls. To pro­vide that cru­cial ex­tra pro­tec­tion, Ray-Ban—mak­ers of the iconic Way­far­ers so of­ten im­i­tated by ser­vice-stop specs— crafts its lenses from a sand­wiched stack of spe­cial­ized ma­te­ri­als. Here’s the recipe for its pre­scrip­tion sun­glasses.

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