Exoskeleton

An exoskeleton was an external skeleton in place of internal bones and was an anatomical feature of many sentient and non-sentient species, particularly insectoid species. Exoskeletons were usually composed of chitin and could be quite durable. Notable species that possessed exoskeletons included the Gand, the Geonosians, the Givin, the Kamarians, and the Verpine.