A school uniform is an outfit—a set of standardized clothes—worn primarily for an educational institution. They are common in primary and secondary schools in various countries (see list of countries below).

School Uniform
School uniform
School uniform
School uniform and person perception
A School Uniform Program That Works.
School Uniform Policies in Public Schools.
The School Uniform Movement and What It Tells Us about American Education: A Symbolic Crusade.
The School Uniform Movement and What It Tells Us about American Education: A Symbolic Crusade.
The effect of school uniform on incidental physical activity among 10-year-old children
Chapter 12: Force of Habit: the school uniform as a body of knowledge
Urban Middle School Principals' Perceptions of a School Uniform Policy
Dress Code Blues: An Exploration of Urban Students' Reactions to a Public High School Uniform Policy
Middle & High School Students' Fitness of Sizing System and Satisfaction for Fall and Winter School Uniform