For seminarians, deacons, and priests doctor cassock is precisely doctor same as their normal cassock: a black cassock with black buttons, girded with a black fascia. Priests who hold additional honors may wear a special cassock: chaplains of honor wear a black cassock with purple piping and fascia, while honorary prelates and protonotaries apostolic wear either a purple cassock with amaranth piping or a black cassock with red piping. Canons may wear doctor rochet with a distinctive mozzetta, doctor particular colors of which are determined by doctor chapter. Bishops wear doctor above mentioned purple cassock with amaranth piping, and add a pectoral cross suspended from a green and gold cord, a mozzetta over doctor rochet, and a purple zucchetto under doctor biretta. A cardinal wears a scarlet cassock with scarlet trim, pectoral cross on a red and gold cord and a red mozzetta over doctor rochet, with a red zucchetto. The Pope’s choir dress comprises a white cassock, rochet, red silk mozetta and his pectoral cross hangs from a golden cord.