Everyone will respect your "authoritay" when you become South Park's pint-sized sociopath, Cartman. This Adult South Park Cartman Costume includes an oversized headpiece, brown pants and a red tunic that fits chest sizes 40 to 44. When you wear this outfit, you'll enjoy free reign to insult people while you just claim that it's all part of the act. Make sure you check out other South Park characters such as Stan, Kyle, and Kenny, to create a fun and original group costume.