Houston, we don't have a problem! Blast off into space with our Inflatable Jetpack Costume for Adults! This inflatable costume secures at the back with a zipper down the center. A battery operated fan inflates it in seconds and the battery pack fits into a pocket on the right side of the seam, accessible via zipper next to the fan. The elastic bands at each wrist and ankle keep the air inside, so you'll stay inflated all night long. Requires 4x AA batteries (not included).