Classically styled, the Cocktail sunglasses' mid-century vibe is given a modern-day update with M49; a plant-based, renewable and eco-friendly acetate developed from natural resources by Italian-based manufacturers, Mazzucchelli'N . Frame: 4 base Mazzucchelli handmade Italian acetate frame with a stainless steel hingeOptics: 4 base melanin infused polycarbonate lenses. 100% UV protection. Up to 98% blue light protectionIncludes Custom Hard Case and Microfiber Sunglass BagDesigned in California. Made in Italy.Lifetime warrantyMeasurement: 49h - 137w -145l (Small Sized Frame)Weight: 40 gramsHelpful information: California Residents, Read Prop 65 Warning