Barton PerreiraFarrow Havana Butterfly SunglassesDetailsBarton Perreira sunglasses in Havana acetate frames with golden metal nose bridge and arms. Face-flattering butterfly shape. Golden gradient CR-39 lenses. 100% UVA/UVB protection. "Farrow" sunglasses are handmade in Japan. Designer About Barton Perreira:Revolutionary technology, unsurpassed craftsmanship, and ingenious design have made Barton Perreira sunglasses sought-after accents. Cofounders Patty Perreira and Bill Barton focus on custom-designed colors, and each frame in the line is handmade in limited quantities.