Portgas D. Ace, born as Gol D. Ace and nicknamed "Fire Fist Ace", was the adopted older brother of Monkey D. Luffy and Sabo, and son of the late Pirate King, Gol D. Roger and his lover, Portgas D. Rouge (both deceased). He was adopted by Monkey D. Garp as wished by Roger to him before his birth. Ace was the 2nd division commander of the Whitebeard Pirates and one-time captain of the Spade Pirates. Ace was killed by Akainu during the War at Marineford two years ago.
Although they were not blood related, Ace looked remarkably like his foster brother, Luffy. However, Ace was more serious looking than Luffy's lighthearted design, and was also slightly taller and more muscular. He also sported rather childish freckles (inherited from his mother), and tended to make an incredulous facial expression by raising his left eyebrow. Interestingly, his facial features were almost akin to his biological father Gol D. Roger in his youth without his mustache. 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 with the "S" crossed out. The S is very similar to the one Sabo wrote on the letter to Ace and Luffy, and bears a striking resemblance to the S on his jolly roger. The fact that the S does not appear on the Chapter 596 cover where Sabo, Ace and Luffy are seen together as grown up enforces the theory that it is a tribute to his deceased brother.
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. He wore black boots, black knee-length shorts with an eyelet-studded orange belt, and a blue pouch belted around his left leg. He also wore a short second belt with a large red "A" on the silver buckle over his right hip, but left it unfastened and threaded the free end along the back of his shorts. A dagger in a green sheath hung at his left hip. On Ace's left arm, he wore a Log Pose and a red and white striped bracelet around his wrist, an orange elbow guard, and his "ASCE" tattoo. He wore a red beaded necklace and an orange hat with two blue smileys, one frowning and one smiling, and a string of red beads sitting above the rim. Two long orange side straps hung down sides of his hat and met at a large medallion of a bull's skull with orange tassels.
Unfortunately, Ace lost his trademark hat, which he already had when he began his journey as a pirate, on Banaro Island as a result of his duel with Blackbeard. His knife was also apparently confiscated, as he no longer had it in his next appearance as a prisoner at Impel Down. The tattoo upon his back that he took so much pride in was later destroyed by the same blow that eventually led to his death. However, at his grave, Ace's hat and knife were placed at his tombstone — either they were retrieved, or they were duplicates in Ace's possession.
During the ending credits to the second movie, Clockwork Island Adventure, previews of upcoming characters from the Baroque Works Saga were featured. Ace was also included amongst the many characters, but while his clothes were almost identical, he boasted a very different color scheme to the one he was given in his official appearance in the anime.
As a child Ace is shown to have often worn t-shirts with two-kanji phrases on the front (such as "innocence" and "violence"). On some occasions they are linked to the scene in which they were worn, like "independence" when the three brothers built their own tree house to live in. He often wore knee-length shorts and a black elbow guard on his left arm. Ace was always seen wearing dark brown, flat, slipper-like shoes and in the winter he wore a green cardigan over his normal clothes.