Mineral glass lenses are lightyears ahead of any other materials when it comes to the eyewear game. What makes it such a desirable lens material is that it is a hybrid glass that is half the weight yet twice the strength of crown glass, meaning that your sunglasses are going to be able to handle a lot of wear and tear.
Mineral glass lenses are not only incredibly strong, but also scratch resistant and optically correct. Otis also handcrafts and perform rigorous testing of all of their products and materials to ensure they meet their high standards. The lenses are also thermally hardened to improve their natural strength and scratch resistance.
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