 The Number 1 uniform consists of the St Peter's navy blue blazer, the college striped shirt worn with the college blue tie in addition to the number two uniform.Number 1's are worn on the first and last day of every term, throughout the winter, as well on special occasions (i.e.Eucharists, awards ceremonies)

The Number 2 uniform consists of the St Peter's College striped shirt, either worn with or without the navy blue sleeveless jersey, and long grey pants for boys or girls, or grey skirt and the choice of blue stockings for girls.