OGK KABUTO FA1 NARROW Matte Clear Free Size Sunglasses, Black/NXT Photochromic,

Standard included lens color (visible light transmittance): NXT Clear Photochromic (85% to 15%) UV transmittance: 0.1% or less (common to all lens colors), Special lens coating: Anti-reflective coating (inner surface) Lens curve: Cylindrical 5-curve, NXT lens with low distortion and degradation optical characteristics, durability, and extremely lightweight design. The frame uses eco-friendly material Rilsan Clear G850 Rnew (polyamide). Inner frame compatible (sold separately)