Fossil Dark Ruthenium Fos 3101/s

Types of Lenses:

• Classic: Scratch-resistant, anti-reflective lenses that block 100% of UV rays.
• Blue Light Filtering: Scratch-resistant, anti-reflective lenses that block 100% of UV rays; they also filter more blue light from digital screens and the sun than our classic or light-responsive lenses.
• Light Responsive: Scratch-resistant, anti-reflective lenses that block 100% of UV rays and transition from clear to a darker tint outdoors (choose from grey, brown, or green). They also filter more blue light than our classic lenses.

Lens Materials and Thickness:

• Standard Polycarbonate (Index 1.59): Affordable easy-to-clean anti-reflection lens, resists scratch & smudges, UV protection, High-quality and impact-resistant.
• Premium Polycarbonate (Index 1.59): Better transparency, high resistance to scratches, repels dust & water and resist smudges “easy to clean”, High anti-reflection coating, optimal UV protection, high-quality and impact-resistant.
• Standard High Index (1.67): Affordable easy-to-clean anti-reflection lens, resists scratch & smudges, UV protection, Thinner lenses recommended for strong prescriptions (if total power is +/-4.0 or higher).
• Premium High Index (1.67): Better transparency, high resistance to scratches, repels dust & water and resist smudges “easy to clean”, high anti-reflection coating, optimal UV protection, Thinner lenses recommended for strong prescriptions (if total power is +/-4.0 or higher).