Ray-Ban Wayfarer Change RB2140 Transitions Photochromic Frame Glass Sunglasses are 2 stlyes of sunglasses in 1! These acetate Photochromic frames change color when they're exposed to the light. They also feature Transitions lenses, which transform from clear to dark tints when you head outdoors. Glass lenses provide clearer views than other plastic options. The classic Wayfarer shape strikes a pose with these new Ray-Ban sunglasses.Manufacturer style #: RB2140. Photochromic acetate frames change color in light Transitions lenses change from clear to dark when you move outdoors Glass lenses provide the clearest views Classic Wayfarer shape