Spy Dirk Sunglasses Matte Black with Happy Boost Lens

HAPPY BOOST enhances color and contrast up to 30% more than the naked eye and at least 15% more than other brands’ lenses, allowing you to enjoy more of what the outdoors have to offer. HAPPY BOOST features our revolutionary patented HAPPY Lens Tech that lets in the good blue light that helps to boost your mood and alertness.Constructed from virtually indestructible GrilamidARC (Accurate Radius Curvature) polycarbonate lenses are tapered to follow the natural curvature of the eye, providing crystal-clear distortion-free vision while reducing eyestrainHigh-quality, long-lasting snap pin hingesPolarization, which blocks over 99% of surface glare and is layered and sealed within SPY’s lenses to prevent scratching, delaminating, and hazing of your polarized filter100% UV protection reduces eye fatigue and long-term sun damage impeccable for everyday use. excellent materials and excellent craftsmanship ensure long-lasting durability.