Named for the city that houses concert goers from all over the world, this piece is built to withstand the adventure in style.Frame: 6 base mold injected grilamid frame with a 5 barrel hinge.Optics: 6 base melanin infused polycarbonate lenses. 100% UV protection. Up to 98% blue light protection.Polarized: 99.9% premium glare reduction, relaxed/soothing eye feeling, true color perception, and scratch resistance.Includes microfiber cleaning bag.Designed in California. Made in Italy.Lifetime warranty.Measurement: 49h - 143w - 145l (Medium Sized Frame)Helpful information: California Residents, Read Prop 65 Warning