Jordan AJ 1 Muscle Jacket - Men'sThe Jordan Retro 1 Muscle Jacket is based on the archive AJ I 'Muscle Jacket'. This updated version features a polyester tricot body with taffeta side panels for a comfortable yet breathable fit. It's also comes with welt pockets, an Air Jordan "Wings" zipper pull, an embroidered chest patch, and embroidered Jumpman design trademark. 100% polyester plain twill. Imported.