It's optional - just as for all clergy and religious brothers. A Monsignor's is black - like his biretta. The colour of the tuff on the biretta indicates the rank of the monsignor. The lowest rank in a Papal Chaplain, and the tuff is violet - so is the stitching on the skullcap. The higher ranks, Prelate of Honour and Protonotary Apostolic, have a red tuff and stitching on the skullcap. Recent pronouncements from Rome (hopefully, this WON'T happen) have eliminated the Prelate of Honour and Protonotary ranks from any future nominations, so those of us who hold such honours may be the end of the line. I never thought when I was elevated to a Protonotary, that I would be in the last boat.
Yes you can wear a skull cap under a ski helmet.
to keep them from being bold
Most traditionally, the groom would wear the skull cap during a Jewish wedding. In certain Jewish communities the prayer shawl is draped over the bride and groom while they are under the Chuppa (wedding canopy).
* rounded brimless cap fitting the crown of the head * the dome of the skull
They don't, Catholic Cardinals wear a cardinal red zucchetto - which looks an awful lot like a "skull cap" but isn't. Actually, all clerics may wear a zucchetto, priests wear black, bishops wear purple or violet, Cardinals wear red, and the Holy Father wears white.
wiskey
Cardinals typically wear a red skullcap called a zucchetto on their head. It is a traditional head covering for clergy in the Catholic Church, including cardinals.
if you wore a skull cap?
red
Orthodox Judaism is a religion where married women often wear small hats, known as snoods, on their heads as a sign of modesty and adherence to religious customs.
the tall one... Toque the short cap, Skull cap
One would describe a skull cap as a fitted cap that is made with either fabric or leather. It has no brim around it or a visor at the front. It is generally worn for religious purposes.