The Period Uniform is the first school uniform to include period underwear. Developed with Colombian intimate care brand Somos Martina, the initiative integrates menstrual care into mandatory school uniforms, ensuring access by design. By using an existing system, it removes the need for separate distribution and makes period protection part of everyday school life. In Colombia, uniforms are a symbol of equality. Yet they fail to address the needs of girls during menstruation. Combined with stigma and lack of access to products, this often leads to absence and discomfort in the classroom. The Period Uniform transforms this reality by making menstrual care a standard requirement. Schools add period underwear to their supply lists, and families can purchase it through accessible channels. Launched in 2026, the initiative is expanding across schools, supported by educational institutions and policymakers. It contributes to increased attendance, is integrated into the school curriculum, and introduces a scalable model that can be adopted beyond Colombia.