You can scare your friends from the inside out this Halloween. This creepy costume includes a full bodysuit that zips up in back. A detailed recreation of the human muscle anatomy is screen-printed throughout the entire suit. A gruesome mask with sinewy looking details and veins is also included. The latex mask is covered in bloody looking muscles, and features white eyeballs and yellowed teeth. Holes at the eyes allow for clear vision and slits near the nose and mouth allow for clear breathing. Give anatomy lessons while trick or treating!