Indeed, our lenses are not made of mineral glass but of Tri-Acetate Cellulose (TAC), a polarizing polymer material. This is a technical choice on our part, and it is now the standard used by the vast majority of sunglasses manufacturers, including on high-end original models.
TAC offers several concrete advantages over mineral glass: effective polarization against glare, great lightness for comfortable wear, excellent optical clarity without prismatic distortion, shape memory, and above all, much better shock resistance.
Our customer service remains at your disposal via the address
[email protected] if you would like more information, or if despite these explanations you prefer to proceed with a refund.