The eight costume of hololive's Oozora Subaru.
It is a policewoman uniform, consisting of a white peaked cap/police hat, a cropped white double-breasted jacket with gold buttons, a tucked-in blue short-sleeved collared shirt with shoulder cutout and center frills, a black necktie, chest harness, white gloves, and an armband bearing Subaru's name on the left arm. She also wears a black high-waist pencil skirt with side slits, black and brown belt with a pouch, medals and handcuffs attached, brown thighhighs, and a pair of brown platform boots.
This tag implicates oozora_subaru (learn more).