Don't sacrifice style with girls plus size school uniforms from Old Navy. Our girls plus size uniforms include short and long sleeve shirts in flattering, well made designs. You'll also find comfortable stretch twill uniform pants in sizes up to 16. Old Navy girls plus size school uniforms include skorts, a favorable alternative to pants, with an appealing look and feel. Our affordable plus size uniforms for girls come with many options, providing your school girl with many attractive, comfy clothes to choose from. Old Navy has the best selection of affordable girls school uniforms.