EsteroA large, Square Rectangular Aviator based on our unique premium architecture makes the Estero a standout pair. With bold proportions, a double bridge and our distinct sculpted nosepads, these frames not only look the part, but are just as comfortable as any pair of Sunskis. The Strong and durable metal frame is made of palladium coated and electroplated SAE 304 stainless steel to handle any adventure you throw at it. Subtle details hint of the