One Piece might be best known for Luffy and the Straw Hats’ epic battles on the Grand Line but there is another element that has become a staple for the swashbucklers. While many anime franchises routinely keep their characters in one outfit throughout a series, Eiichiro Oda’s beloved shonen series takes a different route. Over the decades, the Straw Hat Pirates have thrown on different outfits depending on their locales and various scenarios, adding some originality to their approach.