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Trifocal 7X28 Mid-Index 1.56 Lenses are thinner, light weight, impact resistant and can be easily tinted.
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Trifocal 7X28 Mid-Index 1.56 Transitions Lenses are thinner, light weight variable tint lenses that darken on exposure to bright sunlight. Lenses are light weight variable tint lenses that darken on exposure to bright sunlight.
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Trifocal 7X28 Mid-Index 1.56 Polarized Lenses are light weight, impact resistant and the ultimate in protection, comfort and performance in the sun.
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