Simon Balle boys' uniform (Hertford SG13)

Does anyone has boys'/girls' school uniforms for Year 10+? Our daughter likes ties and jumpers. For sport classes, she is fine with longer shorts or leggings. She is 174cm tall and slim-built. She is starting Year 10 after the summer holidays and has nothing (the colour of jumpers will change to maroon), but white shirts and black trousers.