The 2023 Equestrian Victoria Interschool State Championships Base Layer is designed similarly to the polo, with a classic navy base and white paneling. It features the event year and the hashtag #ISVCHAMPS on the right sleeve, and the Interschool Victoria logo on the left. The chest features both the PETstock logo as well as the Interschool State Championships text. The back of the garment displays a full 2023 Equestrian Victoria Interschool State Championships logo.
