If you’ve ever done a little research into Anglicanism and vestments, you have encountered the Ornaments Rubric. It sits before Morning Prayer in the 1662 Book of Common Prayer and the 1559 BCP. It reads as follows: “The Morning and Evening Prayer shall be used in the accustomed Place of the Church, Chapel, or Chancel;…
via The Ornaments Rubric Explained — The Porcine
My take: if the cassock and surplice is good enough for the Red Baron, it should be good enough for us.