Sea doll cat, also known as two-color doll cat, is a kind of fur color of doll cat and the most popular color at present. This kind of fur-colored cloth-bag cat usually has a figure-of-eight face, with colorful head, back, tail and ears, and white limbs, neck and stomach. The nose must be pink, and usually no other color will appear, otherwise it will be disqualified.
Muppet sea double is a color system of puppet cat coat color. Sea double means that the coat color is similar to seal color, generally dark, similar to brown, and the color will get darker and darker during the growth of cats, thus approaching dark brown.