This is a set of two-in-one British-style summer school uniforms for children, commonly used in kindergartens and primary schools. 

- Design Features: It features a navy blue base color with a white V-shaped trim and a shirt collar design, creating the layered look of a vest over a white shirt. This design is both stylish and easy to wear. The black bow tie adds a touch of formality. For the bottoms, it has shorts for boys and a pleated skirt for girls, following traditional gender distinctions in school attire. 

- Occasions: This style is perfect for formal school events, such as flag-raising ceremonies, school opening days, or other important campus activities, as it presents the children in a dignified and vibrant manner.