naw dude i think at that age he should be riding something with a flex like the invader junior (line). He just wouldn't have the weight behind him to properly flex the anthem and i don't even know if they make it in a size that would be right for him.
But ya for sure check out the invader junior cuz of the price and you just can't go wrong with line as a manufacturer.
T "It's my storm. I can make it do whatever I want."
no at that height he should be on a kids ski such as line invaders, or the armada junior ski(i forget what model) If he rides what some of you are saying like the anthems or the hellbents, he will have no control. He's not even 5 ft so he needs a shorter ski