Ray-Ban Skyler RW4010 Shiny Black / Transitions Cerulean Blue 52mm (601/MF52) - Combines smart eyewear technology with a retro-modern cat-eye frame design. Transitions Cerulean Blue photochromic lenses automatically adapt to sunlight intensity for improved viewing comfort. The 52mm lens size provides a balanced and stylish appearance. Integrated smart features support multimedia and hands-free functionality. The Shiny Black frame delivers a premium and elegant finish.