Complex sentence: The activewear uniform (Casual dress) includes navy and white shorts and a polo shirt for both boys and girls, and there is also a senior jersey which is available to be worn by the Year 12 cohort on activewear (casual dress) days.
Split into simpler sentences: The activewear uniform (Casual dress) includes navy and white shorts and a polo shirt for both boys and girls. There is also a senior jersey which is worn by the Year 12 cohort on activewear (casual dress) days.