 In addition to wearing the other privileged items, the mantelletta, made of the same cloth of his monastic habit, may be worn by an abbot who is not in his own monastery of record, but worn without the ferraiolo.Three documents effected the simplification of Latin Rite clerical dress after the Second Vatican Council, which together comprise the present ecclesiastical law on clerical dress.The first is the Instruction of the Secretariat of State of 31 March 1969, "Ut sive sollicite" ("USS") on the dress, titles, and coat of arms of cardinals, bishops, and lesser prelates.