Orthodox Crosses are also known as Greek Orthodox Crosses, Russian Orthodox Crosses, ByzantineCrosses and Saint Olga Crosses. They are worn by Eastern Orthodox Christians. In addition to the slanted footrest, they feature the "IC" and "XC" which are shorthand in Greek for Jesus Christ. The "IC" is the first and last letter of ISOUS. The "XC" is the first and last letter of CHRISTOS