The product is a Uniqlo T-shirt featuring a collaboration between Billie Eilish and Takashi Murakami, showcasing a portrait photo design in black color. This T-shirt is specifically designed for women in size small, making it a stylish and unique addition to any wardrobe. The collaboration between the two artists brings a blend of music and art to fashion, providing a trendy and statement piece for fans of both Billie Eilish and Takashi Murakami.