Calvin Klein CK20123S 001 Matte Black Sunglasses. The sunglasses provide 100% protection against UVA and UVB sunlight and meet British Standard EN 1836:2005. Perfect for summer weather, these sunglasses are both stylish and practical. Lens Width = 55mm, Nose Bridge Width = 17mm, Arm Length = 135mm, made In china. Sunglasses, Sunglasses Case, Cleaning Cloth and Care Instructions all Included, 100% Protection Against UVA & UVB Sunlight and Conform to British Standard EN 1836:2005. Style Code: CK20123S 001. Black Sunglasses. These are elegant square style sunglasses crafted from lightweight metal. The double bridge design and silicone nose pads ensure all day comfort. The Calvin Klein logo features on the temples for brand authenticity.