What is on the priest's robe?

I have noticed that on the bread, and on the priest’s robe there is a P, with an X going through it. Does this stand for St. Pius? What does it symbolize?

The symbol you’ve seen on the priest’s vestments is called a chi-rho, a depiction of an interlocked chi and rho, the first two Greek letters in the title Christ. The symbol then is a symbol of Jesus Christ.

Recommended reading:
Labarum (Chi-Rho)

]* Mass Appeal** by Jimmy Akin[/LIST]

DISCLAIMER: The views and opinions expressed in these forums do not necessarily reflect those of Catholic Answers. For official apologetics resources please visit www.catholic.com.