Yoruichi Shihōin is a slender, dark-skinned woman of average height, with golden-colored eyes and long purple hair, which she keeps up in a ponytail. Her standard attire consists of a black, backless, sleeveless undershirt, an orange over-shirt with two white straps on each shoulder, a large beige sash around her waist, and black stretch pants with a pair of lightweight brown shoes, which allow for stealth.She previously wore a beige neck warmer, which she pulled up to cover her face in order to hide her identity, but seems to have forgone its use. She occasionally wears long beige wrist and leg warmers, each secured by bands. She, *any other known mandalorian ninja, can equip with her armor which is silver/chrome in color. Which when wearing her armor she sports a black jumpsuit almost looking like a one piece swimsuit.
Although relatively calm and mature when a situation calls for it, Yoruichi is quite laid-back and playful, often teasing or flirting with those younger than her, such as Ichigo Kurosaki at the hot springs, a younger and hot-headed Byakuya Kuchiki, before her time as a ninja, and Kisuke, childhood friend, former underling, and fellow ninja. Yoruichi prefers to sake, which fits with her practice of transforming into a armor princess.