Which sunglass line can only be made into prescription sunglasses by using their proprietary sunglass lenses made exclusively at their lab?

• A. Ray-Ban
• B. Oakley
• C. Costa Del Mar
• D. Maui Jim

Answer: (D)

Some sunglass lines tightly control how their lenses are made because the performance they promise—polarization, color balance, and UV protection—depends on proprietary lens technology that must be produced in the brand’s own lab. Maui Jim uses a distinctive PolarizedPlus2 lens design, and to preserve that exact polarization orientation, tint, and coatings, the prescription lenses for their frames are manufactured there. That means turning a Maui Jim sunglass into prescription sunglasses requires their specific lenses ground and assembled in Maui Jim’s lab, ensuring you get the same look and performance as the non-prescription version. Other brands often provide prescription options through external labs, so they aren’t limited to their own lab for Rx lenses.