Spy Optics sunglasses prevent eye fatigue and long-term sun damage with 100% UV protection and the Happy Lens patented technology for a visual experience unlike anything else. Spy Optics glasses are scientifically proven to improve your mood and alertness while enhancing color and contrast. The virtually-indestructible Grilamid construction, ARC polycarbonate lenses, and high-quality pin hinges make Spy Optics sunglasses the perfect choice for any outdoorsman, without having to sacrifice style.