In this Adult G.I. Joe Duke Muscle Costume , you’ll defeat the forces of COBRA! Get ready to fight in this G.I. Joe Duke costume that comes with a jumpsuit that’s full of fake muscles. Also includes a helmet. Fits adult sizes 42-46. Availability: This Adult G.I. Joe Duke Costume takes approximately 1-2 business days to leave the warehouse plus transit time. Please allow additional time during peak holiday periods.