Giyu is a fairly tall young man of a lean muscular stature and pale complexion. He has unruly black hair of uneven lengths that sticks up in tufts around his head, which he wears tied back in a low messy ponytail. His eyes are sharp and moderately large, their irises a deep sapphire that fades to a lighter blue. Giyu wears a dark cyan-tinted uniform and a pair of white zōri with dark blue straps and tabi socks. Giyu always wears a stoic and unbothered expression on his face.