The AJ 4 Retro Cool Grey (2019) is a basketball sneaker that was released in 2019. It features a cool grey suede upper with contrasting hits of chrome accents on the lace eyelets and Jumpman logo on the heel. The shoe also includes black accents on the wings, midsole, and lining, as well as a white midsole and grey outsole. It is a popular colorway for the AJ 4 silhouette, which was first released in 1989 and designed by Tinker Hatfield.