Simipour is a bipedal monkey-like Pokémon that shares its design theme with Simisage and Simisear. Its hair is voluminous, with numerous long blue locks sprouting from its head, which curl at the ends, resembling spouts of water flowing from a fountain. It has a mostly cyan blue body; the top of its head, its hair, ears, torso, and tail tip are cyan, while its arms, legs, face, and abdomen are yellowish tan. It has rounded ears with light blue insides, ovular eyes that appear closed (giving it a cheerful, smiling appearance), and a round black nose. It has a white and blue apron-like shag of fur covering its chest and extending down to its abdomen. Its tail is tan with a tuft-like blue tip.