OTIS sunglasses are constructed using the highest quality materials available. Each component is individually quality checked before being carefully packaged, ready for sale. OTIS sunglasses have a lifetime warranty against defects in materials and workmanship. Beyond using the finest frame materials available, the OTIS brand has been built around the unparalleled properties of Mineral Glass lenses. They’re included in 100% of the products we make. Mineral Glass – made of all natural elements like sand and soda ash – provides a level of strength, clarity, scratch-resistance, and sustainability that no other lens material in the world comes close to.

All OTIS lenses exceed the strictest Australian, USA, and European standards for quality and strength. Although Mineral Glass is the most scratch-resistant, optically correct, and sustainable lens material in the world, it is NOT scratch proof. Mineral Glass can scratch or crack under extreme pressure, severe temperature, and weather fluctuations, heavy or rapid impact or if they’re just simply not cared for properly. Damage to lenses, frames, and other components due to normal wear and tear and/or mishap/misuse are not covered under the warranty.