Not A Traditional Mantle
We are sure that you have seen films and paintings showing his crucifixion as well. In the film, Jesus Christ is shown wearing a cape and a short tunic. Historians have suggested that his robe was not a regular mantle but some sort of prayer mantle. If you watch the movie, you are going to see that the Messiah was sporting this type of garment during the crucifixion.
Not One But Two
Historians also believe that Jesus Christ had two distinct prayer shawls. According to the descriptions from the bible, the Messiah took off a scarf so that he can wash the feet of his devotees. He also wore a different cloak when he prayed.