He'll feel amazing in this Amazing Spider-Man costume! Included in the costume are the jumpsuit and mask. The mask is a stretchy, comfortable polyester blend with yellow, screened eye holes. There are two tiny holes at the nose for easier breathing. The mask opens in the back with a single Velcro snap. The jumpsuit is a single piece of 100% polyester with openings at the arms and legs. It opens in the back with Velcro snaps for easy changing. There are muscles built into the suit at the shoulders and chest. At the top of the chest is an LED spider which lights up when you press the button. He'll be ready for web swinging when he goes in this light-up Amazing Spider-Man costume!