Imagine by Rubie’s Batman V Superman: Dawn of Justice Child’s Batman Muscle Chest Shirt Set Price: $24.68 (as of 28/12/2019 00:24 PST- Details)

Boxed set comes with foam-backed printed Batman muscle chest shirt, mask, and cape
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 Batman V Superman: Dawn of Justice movie costume, item shipped and sold directly by Amazon are guaranteed authentic