To answer a question we need a who, what, when, where, why, or how. Your question lacks a where and when.
clothing
no
The same clothes as everyone else of their class.
middle class whites-apex
Modern, middle-class city dwellers dress in Western-style clothes.Chile's huasos or cowboys wear the poncho.
The capitalist class
It depends upon the school's policies, but it seems unlikely that any middle school would permit a bikini.
low class, middle class, upper class/high class
There is rich, middle class, and poor. I, myself, am middle class.
Middle class
The Bourgeoisie is the Middle class that grew out of social. Untouchables were Middle Class. Helots and Serfs were Lower class.
Middle class to upper middle class .