Meridian packs big tech into a small fit - Rail Lock lens swap, Optimum clarity & 20% more FOV with Observation Deck Tech. Bonus Lens included. Automatic + GB w/Sky Blue Mirror - Our grey-base patented Polarized + Photochromic lens technology adjusts its tint from light grey to deep rose with changing light conditions ensuring you never need to change lenses again. VLT range: 18-38%. This option also includes a bonus Sky Blue Mirror for the snowiest days and night skiing/riding. Zeal Meridian Goggles + Automatic+ GB Lens | Lavender | Christy Sports