Baby Jack-Jack Costume with Mask – Officially licensed Disney The Incredibles costume for babies. This set includes the iconic red jumpsuit with the “I” emblem and a black eye mask to hide his superhero identity. Movie-Inspired Design: The soft, stretchy red jumpsuit features black stripes on the wrists, ankles, and collar, plus button snaps along the legs for easy dressing and diaper changes. Size: Fits most babies 6–12M for comfortable wear. Occasions: Perfect for Halloween, themed events, cosplay, costume parties, or everyday dress-up fun. Material: Made of 100% polyester for durability and comfort. About Party City: With decades of experience, Party City brings high-quality, affordable costumes and party supplies to help families create unforgettable moments.