He has dark grayish-green hair with a flyaway piece of hair sticking up at the top. He has large eyes with small, amber colored pupils. Yamaguchi is taller than average and has a thin build. This, coupled with his freckles, had caused him to be bullied when he was younger,[1] although he doesn't seem to be bothered by this anymore. After joining the Karasuno volleyball team during games, Yamaguchi wears Karasuno's black, orange, and white uniform with the number 12 on the back. He also wears kn