What is the purpose of exoskeleton in insects? - TimesMojo

Dead crab exoskeleton picked apart by flies and insects on pebbles by beach, macro

arthropods, such as insects, arachnids and crustaceans, moulting is the shedding of the exoskeleton, which is often called its shell, typically to let the organism grow. This process is called ecdysis. Most Arthropoda with soft, flexible skins also undergo ecdysis. | Legit Money Comedy

Hyundai's medical exoskeleton suit shows the promise of robots

This exoskeleton suit will basically turn you into Iron Man