Lens Type: Mirror, Photochromic Hand Polished Cellulose Acetate: Acetate is hypoallergenic and lightweight. Mineral: Mineral glass provides perfect optical quality with zero distortion and a high level of transparency. It is very resistant to scratches, shock and abrasion. 6 layers of anti-reflective coating. Oleophobic and hydrophobic coating. Anti-scratch. Impact resistant. IR Protection.
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