Rikiya is a huge, tall, and very muscular man who wears a black tank-top with a stand-by symbol on it, probably referring to his Quirk. On his back, it's possible to see a metallic seat that he uses to carry other Shie Hassaikai members, like Mimic. Rikiya wears also a pair of olive drab jeans, with an armor-looking belt. He wears a pair of blue socks and orange sneakers as well. He also wears massive gauntlets and knuckledusters on his fists too.