See Why Our Lenses Set a New Standard

1. At the heart of every pair of Maré sunglasses is a CR39 lens, a lens material originally developed in the United States in the 1940s for optical applications and now regarded as one of the finest choices in premium eyewear. Today, CR39 lenses are manufactured by specialised optical producers, most notably in Italy and Japan, where craftsmanship and precision are paramount.

2. CR39 is celebrated for its exceptional optical clarity, offering a crisp, distortion-free view. It is naturally lightweight, highly scratch-resistant, and provides full UV protection, making it a superior choice for everyday comfort and long-term eye health.

Unlike common polycarbonate lenses, which are cheaper to produce but prone to distortion and scratching, CR39 is more expensive to manufacture due to its density, purity, and rigorous production process. For this reason, it is not widely used by mainstream fashion brands, as they often prioritise lower costs and higher margins.

3. Many brands simply describe their lenses as “premium” without disclosing the actual material. At Maré, we believe in transparency, every pair of our sunglasses comes with a booklet confirming they are fitted with genuine CR39 lenses. This is our promise that you are getting not just a beautiful pair of sunglasses, but world-class lens technology designed to protect and enhance your vision.