Vulpix are fox-like Pokémon with reddish-brown fur. Vulpix's most distinctive feature is its six orange tails that are curled at the tips. According to the Pokédex, when it is born, Vulpix possesses one snow white tail that eventually splits into many tails as it grows older. On the top of its head, Vulpix have a tuft of bright orange fur atop their heads that curls into three rolls at the top and falls over its forehead at the bottom. Its underbelly is cream-colored. Vulpix appear to be feminine Pokémon in general, and females are more commonly found in the wild than males.

Additionally, a shiny Vulpix has a golden color scheme as opposed to its original red-brown. Also, Vulpix do not have any differences in appearance between genders.