Jupiter's layers consist of many clouds. The outer layer is made up of thick, wavy clouds of ammonium, sulphur, and hydrogen. The white parts of clouds are made of ammonium crystals and the brown-ish parts are made up of condensed ammonium hydrosulfide. These clouds can span up to 44 miles (71 kilometers). The middle layer consists of mostly ammonium hydrosulfide crystals and the inner most layer consists of ice water and vapor.  Lastly, at the center of Jupiter is the core. Not much is known about Jupiter's core as it is almost impossible to get close enough to observe it. The size is unkown but compared to the rest of jupiter it is relatively small. It is made up of rocky and metallic material. (NASA)