A small "sweat cloth" upon which Jesus Christ, is said to have miraculously impressed His own portrait as He was wiping His face with it when He was going to the crucifixion.

In the Roman Catholic Church, sudarium is another term for Veronica's Veil which is a legendary Catholic Church relic. The faithful believe that Veronica from Jerusalem encountered Jesus along the Via Dolorosa on the way to Calvary.

When she paused to wipe the sweat off his face with her veil, his image was imprinted on the cloth. The event is commemorated by one of the Stations of the Cross.

According to legend, Veronica later traveled to Rome to present the cloth to the Roman Emperor Tiberius. It had miraculous properties, including the quenching of thirst, restoring blindness, and sometimes even raising the dead.