Not sure on the size. I used measurements to get as close to the real size as I could. The Adidas Climalite T-Shirt for Boys in size XL is a stylish and comfortable red shirt without tags. Made by the popular brand Adidas, this shirt is perfect for active boys who want to look good while playing sports or just hanging out. The bold red color with black accents will stand out and make a statement in any casual outfit.