User blog comment:Xilinoc/Ch. 598 - The Shooting Star Project (We Only Have To Beat You Mix)/@comment-5693502-20140925165030/@comment-3177945-20140925205747

the Oken clothing is just the best armour a shinigami can wear, the chance is she created the shinigami's robes, both the regular black one and the capitain's white kimono, and they are not just uniforms, but real armours, shinigami's are quite durable, their clothing should have something to do with it