Marvel Ant-Man Deluxe Muscle Child Costume Size Large 10-12 Includes one-piece jumpsuit with padded muscle chest & arms, belt, & plastic face mask. Also includes BONUS items: clip-on Ant-Man shoulder badge, ID card, & ID wallet. Child Size Large 10-12 (Chest 28", Waist 26.5", Seat 30", Height 54 - 58.5") Recommended for ages 7 to 10 years. 100% polyester