The Conner Cooper Skin is an unlockable skin in Sly Cooper: Age of Thieves. It is only available after the Cooper Gang finds the Crystal Sly Mask in Out of Touch, Out of Time.
Description[]
"Conner Cooper is arguably the most mysterious of the Coopers. People like Dr. M or McSweeney know what Conner looks like. Not many people can say that. However, it seems that the world will finally know exactly what he looks like. Hmm... Dr. M was right. He does look a lot like Sly..."