Regardless of high school or junior high school, school uniforms are called school uniforms. Different schools have different uniforms.

What is sloppy? That's what the Japanese say. What else do you want? Don't you just ask what that dress is called? It's called uniform. Uniform! ! ? Is it okay? じょしこぅせぃせぃふく! ! ! Are you satisfied?

Isn't that what you said?