This outfit and this age is peak Gohan. The man was a beast before beast was even a thing.
Edit: I'm not stating this is peak Gohan as a fact. It's a personal opinion that I've had since I first saw Teen Gohan in the Bojack movie. I just really love Teen Gohan in his father's outfit style and when he powers up he goes from a really happy-go-lucky smiling child to a ruthless stone cold killer protecting his friends and families world.