See post #2082894 for base.
Her uniform is shared by most of the rest of the class and it consists of a vest over a short sleeved white shirt with bike shorts under her skirt, and white gloves. The main difference between them is that each girl's neck ribbon is a different colour - Kagerou's is green.
On the Fifth Anniversary update (April 23th 2018), she became the first Kagerou-class to obtain her second remodel. See the page for more details.