Kreuzberg sunglasses in brown tortoiseshell with dark lenses, plant-based bio-acetate as a high-quality and sustainable material, a distinctive silhouette inspired by the Berlin scene and energetic nightlife, production from a single piece of material, which is then milled, shaped and polished to a high shine, design reflecting freedom, creativity and urban style, handmade with an emphasis on detail and precise craftsmanship, FURIOSA® SHADES collection created in collaboration with designer Aleš Boem, winner of the Red Dot Design Award, solid hinges ensuring stability and long life, 100% UV400 protection against UVA and UVB radiation, lightweight nylon lenses with high optical clarity, anti-reflective coating to reduce glare and improve visibility, oleophobic treatment against fingerprints and grease, FURIOSA® Contrast Enhanced technology for enhancing colors and details, reinforced case made of eco-leather, resistant to deformation, microfiber cleaning cloth, box made of recycled paper.Material: plastic Eyepiece size: 51 mm Beam size: 21 mm Temple size: 145 mm The glasses are made from plant-based bio-acetate, a renewable material that is both durable and kind to the planet. We do not use petroleum derivatives or chemical plasticizers in the production, making the material environmentally friendly.