Marvel Iron Man Mark 43 Muscle Chest Shirt Set Deluxe Iron Man Mark 43 costume shirt with foam-back muscle chest shirt and half-mask with elastic band Costumes are sized differently than clothes, Imagine Small designed to fit 44 to 48 inches tall with 25 to 26 inch waist, see measuring instruction chart Officially licensed Marvel Avengers Age of Ultron costume, items shipped and sold by Amazon are guaranteed to be authentic All Imagine products are tested to meet or exceed all U.S. safety standards Dress up play inspires children's imaginations while they have fun; makes a great gift Officially licensed by Marvel Boxed set includes Iron Man Mark 4 foam-backed muscle chest shirt and half-mask with elastic band Designed to fit children 44 to 48-inches tall with 25 to 26-inch waist Kids wear with their own pants for maximum comfort Encourage imaginative play with a costume from Imagine by Rubie's