Knight or Djinni, Rouge or Gladiator, Michael's Changing Fantasy Suit is actually two posable/conforming clothing figures over-laid and then conformed to Michael.
Each body part has alternate versions that can be swapped in by turning a "Change Part" dial on each part. With each turn of the dial the body part changes.
Each of the two figures uses one map containing all the UV mapping for the various body part option for that figure. Also, each alternate part has its own material.
Literally hundreds of combinations are possible expanded to thousands with additional textures.