Lens Type: Mirror. Grilamid: Grilamid is a resilient type of nylon specifically formulated for flexibility| stability| and durability. Polycarbonate: Polycarbonate is lightweight| comfortable| impact resistant| and provides UV protection. Trident Polarization: Block over 99% of glare and is layered and sealed within SPY's injected ARC Lenses to prevent scratching| delaminating and hazing of your polarized filter. Happy Lens: SPY's color and contrast enhancing happy lens allow in the sun's "good" rays that studies suggest create an uplift in mood and alertness| while still blocking the sun's "bad" rays.
