Catholic School Uniform

A Catholic school uniform, in North America, and especially the United States, stereotypically consists of a pleated plaid skirt or jumper (a sleeveless dress), Mary Jane or saddle shoes, a blouse, and a sweater, for girls; for boys, a button-down shirt, a necktie, and dark pants. Actual school uniforms vary widely by location and individual school.
In contrast to most schools in the United States, all Roman Catholic schools in that country have some form of dress code, and most of them (especially those with students in the lower grade levels) have a mandatory uniform policy.
The concept is not easily transposed to other countries. In most Commonwealth countries, school uniforms (often similar to the "Catholic school uniform" stereotype in the United States) are common in all types of schools, whether sectarian or not and regardless of religious denomination.