Otis sunglasses perfectly marry fashion and technical excellence in every pair with the help of mineral glass lenses. Find out how and why mineral glass lenses are the only way to go in the following Q & A with our friends over at Otis.

Q: What makes OTIS the best glass lens sunglasses?

A: The focus of OTIS is to offer a unique point of difference. We build eyewear using only mineral glass lenses with frames and components of the highest quality materials. We draw inspiration from classic and iconic designs and combine those timeless elements with modern trends. Finally, we make our product attainable with retail prices starting under $200. Our mineral glass lens offers a real value proposition at this price point. We deliver a true premium product with benefits that can be clearly appreciated.

Q: What are the advantages of glass sunglasses lenses vs. plastic?

A: Mineral glass is created from natural elements like sand and soda ash. It’s endlessly recyclable and harmless to humans and animals alike. Its optical clarity, high resistance to scratching and lack of distortion make it the world’s best lens material.

The primary element in mineral glass is sand, or silica, a completely natural product. 90% of the earth’s crust is silicate. All of the Earth’s people, animals, plants, and bacteria amount to little more than a thin carbon-based layer on top of a pristine silicate planet.

Mineral glass lenses provide the most optically correct, distortion-free vision of any lens material in the world. Mineral glass lenses require no added layers or coatings during the manufacturing process. UV protection, scratch resistance, tint color, and moisture resistance are inherent properties of mineral glass. Mineral glass has a natural rigidity that ensures its shape is maintained. Unlike a plastic lens which flexes under stress, mineral glass will never flex and distort within the frame.

Otis Sunglasses, Otis Prescription Sunglasses

Mineral glass is also the most stable lens material in the world. It provides the most permanent tints that will not warp, peel, or fade over time. The inherent nature of glass makes it impenetrable to saltwater and oils. In fact, a molecule of oxygen will pass through a 1mm thick polycarbonate polymer in two weeks. The same oxygen molecule will take over a billion years to pass through 1mm of mineral glass. This is why mineral glass can create objects of great utility and beauty that endure for centuries, a time span in which plastics turn to dust.

Lastly, mineral glass is the most scratch resistant lens material in the world. Throughout the development of plastic CR-39 lenses, scientists reviewed more than 2,000 patents in their quest for a suitable abrasion-resistant coating. None could compare to the natural characteristics inherent to glass. As a result, products from space shuttle windows to iPhones continue to use glass for its scratch resistant property. Take a look at this video to see just how scratch-resistant mineral glass lenses truly are.

Q: How is it that glasses lenses are scratch resistant?

A: The real secret behind the scratch resistance comes from the intense chemical and thermal hardening process each lens undergoes. The chemical process is called an ion exchange. An ion exchange involves exchanging larger ions from a molten chemical with the smaller ions on the surface of the glass lens. This process increases the amount of pressure a mineral glass lens can withstand. The thermal hardening process involves heating the lens to a softening point above 400 degrees Celsius, then cooling the lens surface rapidly while leaving the inside of the lens hot. This creates an additional hardening effect on the outside surface, further strengthening the lens.

Q: Can you get a polarized glass lens in your sunglasses?

A: Absolutely! In fact 75% of our 2016 range features polarized mineral glass lenses.


Perhaps the best question to ask is, why not get Otis sunglasses with mineral glass lenses? The benefits of glass lenses are endless, and so are our reasons as to why you shouldn't wait any longer to get yourself a pair. We promise you'll be blown away. If you have any further questions about Otis sunglasses, give us a call! We're here to help, 7 days a week.