Monkey D. Luffy, also known as " Straw Hat Luffy" and commonly as "Straw Hat", is the main protagonist of the manga and anime, One Piece. He is the founder and captain of the increasingly infamous and powerful Straw Hat Pirates, as well as one of its top fighters. His lifelong dream is to become the Pirate King by finding the legendary treasure left behind by the late Gol D. Roger. He believes that being the Pirate King means having the most freedom in the world.

Appearance

Luffy has black shaggy hair, round black eyes, and a slim muscular build. He is renowned for his trademark straw hat (from which he gets his nickname "Straw Hat Luffy"), which was lent to him when he was young by the legendary pirate captain, "Red-Haired" Shanks, who in turn received it from Gol D. Roger. He wears blue shorts with cuffs, sandals, and a sleeveless red vest. Luffy also has a scar with two stitches underneath his left eye, which he earned by stabbing a knife under his eye to show Shanks that he was tough and not afraid of pain. He was severely wounded by Akainu in the Summit War of Marineford, leaving a large X-shaped scar on his chest.

Before the Timeskip

Similar to most of his male crewmates, Luffy has the same outfit throughout most of the series (with the exception of Nami and Nico Robin, who frequently change their outfits). Luffy will often wear a different outfit to suit the climate of an island (such as a hooded parka on Drum Island or desert robes in Arabasta) but will switch back to his trademark red vest and blue shorts after the adventures on that island are over. Despite this, he will wear his usual outfit in different colors and has been known to sport other miscellaneous items on his person from time to time like in Thriller Bark and Sabaody Archipelago.

• During the Drum Island Arc, he wore two different parkas, the first being a dark red parka with fur on the cuffs, hood, and hem, and then a checkered, hooded parka with the colors white, orange and bright yellow, which Nami wore in the beginning.
• During the Arabasta Arc, he wore desert robes consisting of a dark red robe with three white rings decorated along both sleeves and a light blue wrap over his head.
• During the Skypiea Arc, he wore a black wristband around his left wrist with a white bangle over it. In 37 Volume SBS, Oda said that two members of his crew lent him accessories: a black wristband by Usopp and a white bracelet by Sanji.
• During the Long Ring Long Land Arc, Luffy wore an afro on his head, dark red shorts, and red bandages on his feet, getting an image of a blue flaming skull and crossbones painted on his chest as well, when he was fighting Foxy.
• During the Enies Lobby Arc, he wore black shorts with more pockets than his blue shorts, which he noted he could not fit his meat in.
• During the Post-Enies Lobby Arc, Luffy wore a white T-shirt with the Galley-La Company emblem on it in red; red liners around the top, shoulders, and collar; and navy blue shorts.
• During the Thriller Bark Arc, he wore an orange vest and red shorts. After the battle against Moria in Thriller Bark, Luffy wore a dark decorated, jeweled armband around his left bicep, given to him by Nami. This armband was later revealed to be a map that leads to Captain John's lost treasure, which Buggy sought for some time; Luffy handed the armband over to Buggy in exchange for his services in navigating through Impel Down.
• During the Sabaody Archipelago Arc, in the manga, he wore a blue vest and red shorts (which can also be seen on the cover of volume. In the anime, he wore the same blue vest, but dark blue shorts.
• During the Amazon Lily Arc, Luffy wore a light blue vest with red shorts.
• During the Impel Down Arc, Luffy wore his outfit from his stay on Amazon Lily until after his fight with Magellan, at which point he replaced his light blue vest with a bright yellow vest given to him by Inazuma.

No matter where he is, Luffy wears his Straw Hat through absolutely everything, though at the start, the hat was prone to get knocked off his head easily, forcing Luffy to either put it aside or have someone hold onto it during fights. From the Arabasta Arc onward, he has gotten a string strap for it, which was sewn on by Nami, allowing the hat to hang from his neck during fights.

After the Timeskip

After those two years, a few things have changed. Luffy wears an open, long-sleeved red cardigan with four buttons (which shows the X-shaped scar covering most of his chest he received by then-Admiral Akainu), with a yellow sash tied around his waist, somewhat reminiscent of Gol D. Roger's outfit. He has grown slightly taller and is shown to be significantly more muscular due to his training. This can be seen in his slightly thicker neck, more pronounced deltoids, and better-defined chest. During his fight with Sanji, Luffy loses one of his top teeth after being struck by a Diable Jambe Joue Shot directly into his face. However, it grew back after he drank a bottle of milk.

• During the Punk Hazard Arc, Luffy wore a long winter coat with red and white horizontal stripes, along with yellow ear muffs, which he stole from one of Brownbeard's Centaur Patrol Unit.
• During the Dressrosa Arc, Luffy wore an open, short-sleeved shirt with a sunflower pattern, standard blue shorts, and a yellow sash. He also wore a fake beard. Upon entering the tournament for the Mera Mera no Mi in the Corrida Colosseum, he wore Viking-style armor, complete with a sword and shield until it was stripped from him due to a violation of the weight restriction. Upon revision to meet the weight restriction, he added a cape and wore the same Viking style helmet he wore previously, along with his registration number '0556' and the word "Lucy" written on the back of his shirt, obscured by his cape. When he recovered after his battle against Doflamingo, Luffy wore a red tank top along with his standard shorts in brown (dark grey in the anime).
• During the Whole Cake Island Arc, Luffy wore an open, fancy white cardigan with puffy sleeves along with his standard shorts in red. He also had a decorative scarf wrapped around his straw hat after landing at the Seducing Woods, though he appears to have lost it during his battle with Charlotte Cracker. These clothes were eventually torn to shreds after several battles and he later dons a new outfit to meet with Capone Bege; a red suit jacket with a brown shirt and a pink ascot along with red formal shorts. He also fitted a black fedora to the top of his straw hat.
• During the Wano Country Arc, Luffy wore a red yukata with patchwork mon of a blue rounded sun on a cyan background and a yellow obi. He also had a topknot on top of his hair. He also had the Nidai Kitetsu he borrowed from Tenguyama Hitetsu. Before beginning the assault on Onigashima, Luffy received a set of samurai armor from Hitetsu. When helping Kin'emon and the others against Kaidou's fleet at sea, Luffy wore a long, dark-colored coat over his usual attire. He also swapped his regular sash and pants for a purple and orange-brown one respectively. He also briefly wore a Beasts Pirates disguise (created by Kin'emon) when infiltrating Onigashima.