Optica is a premier Costa del Mar retailer. We keep over 50 pieces in stock. We also carry a wide assortment of designer sunglasses, as well as unusual wooden-framed sunwear. We carry Randolph Engineering sunglasses - made right here in Randolph Massachusetts. Need prescription sunglasses? We offer prescription Costa del Mars, as well as many other brands. We offer polarized lenses, with the best glare protection available.