With a bold, retro-inspired shape and sleek steel accents, the Spy Women's Mulholland Happy Lens Sunglasses deliver a vintage look that would've been right at home in the Hollywood Hills back in the sixties. Happy Lens technology filters out short-wave blue light, which not only relaxes your eyes for less fatigue, but also causes an uplift in mood and alertness. Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.