Learn About Mineral Glass

What makes OTIS lenses so unique?

Environmentally friendly. Scratch resistant. Optically correct.

There are a few things that can go wrong with sunglasses lenses. Some scratch easily. Some distort your vision. Most are made from plastic and are terrible for the environment. 

Mineral glass fixes all these problems. 

That’s why we use mineral glass lenses in all OTIS eyewear. No exceptions. 

Every OTIS lens is made from non-toxic natural materials like sand and soda ash. At the end of their long life, they’re also endlessly recyclable. 

They are thermally hardened, enhancing their already natural scratch resistance and durability. 

They’re also ground, polished and precision tested for clarity control, making them 100% optically correct. 

It’s hard to think of a better lens material than mineral glass. Just check out how they are made in the clip below...

At OTIS, we go the extra mile in creating our mineral glass. To help you understand the benefits, here’s a solid dot point overview below. 
A hybrid glass half the weight & twice the strength of standard crown glass, delivering unparalleled clarity, making it the perfect lens material.
A mixture of pure elements such as silica sand, limestone and soda ash, mineral glass is naturally sourced directly from the earth. Mineral glass (and all it’s made of) is harmless to humans and animals alike and is 100% RECYCLABLE.
Precision-ground mineral glass creates the ultimate distortion-free vision and is the most stable lens material in the world.
Mineral Glass is recognised as the most scratch-resistant lens material available on the planet.
We use a heating and cooling process by which the natural toughness of mineral glass is even further enhanced to increase durability.
Mineral glass is created in permanent lens tints and provides the most stable colour contrast of any lens material. OTIS lenses will never warp, peel or fade over time.