The whole costume comes with a red jumpsuit with a detachable mask. The costume runs small. So please consider height at first. The following are the measurements of each size. Size small is for 6-8 years old boy who is 105-122 cm tall. Size medium is for 8-10 years old boy who is 122-137 cm tall. Size large is for 10 years old boy who is 137-150 cm tall.