Ace's Whitebeard symbol tattoo

Ace's tattoos were among his most remarkable, trademark features. He had a tattoo on his back of the Whitebeard symbol — purple bones formed in a cross behind a purple skull with a white mustache — that he described as his pride and joy. Ace had another tattoo on his upper left bicep that spells "ASCE" vertically. The "S" crossed out is a tribute to Sabo as that's his jolly roger. On the cover of Chapter 596 indeed, Ace's tattoo is written as "ACE" instead of the original "ASCE" as the cover is a "what if" image of Ace, Luffy, and Sabo together as adults with the latter being still alive.Ace wore an open-front shirt until he received Whitebeard's tattoo - afterwards, he stopped wearing anything over his upper body except when on winter islands.