It resembles the dress of the character Squid Girl from the anime Shinryaku! Ika Musume, simply known as Squid Girl outside of Japan. It, along with its matching SQUID GIRL hat and shoes, has its own brand in the game (SQUID GIRL). Despite its name, it is a unisex item. On an Inkling boy the dress is shortened to resemble a shirt.
The creator of Shinryaku! Ika Musume has drawn crossover fanart for Splatoon featuring characters from his own series. These can be viewed on his twitter page, accessible here .
Names in Other Languages
|Japanese||イカ娘ノースリーブ||Squid Girl No-sleeve|