The Island Outfit are clothes worn by Toon Link and his Gold material drop from Hyrule Warriors Legends. In addition to its role as a material, it also appears as one of Toon Link's outfits. Link has a recolor of his standard outfit based on the Island Outfit.
The Island Clothes are based on the unnamed outfit Link wears at the beginning of The Legend of Zelda: The Wind Waker before switching to the Hero's Clothes. They are visible when Link wears the Hero's New Clothes in a second playthrough of The Wind Waker.