CK24507S. Frame material: plant based resin. Caliber: 57 mm. Lens material: Tritan Renew. UV protection: UVA / UVB. Rose colourway: lens clour Gradient White, sun filter category 2, medium level of glare reduction and medium level of UV protection. Beige colourway: lens colour Solid Gey, sun filter category 3, high level of glare reduction and high level of UV protection. Black colourway: lens colour Solid Grey, sun filter category 3, high level of glare reduction and high level of UV protection. Sunglasses come with a protective carrying case. Colour: black