My 5yo son had the muscle-bound version for his superhero birthday and liked it but found it uncomfortable and ill-fitting. The neckline had a stiff edge that rubbed against his neck.

This one was MUCH more comfortable and fit much better. Like all of these costumes, they are pretty poorly made. They don't last that long if you wear them more than 5-7 times and forget washing them... You'll always get a tear somewhere.

But--if your kid loves the Teen Titan's Robin, you gotta get the gear, right? So this costume did the trick and, even if it falls apart, he can always wear the mask and cape! lol