two-nitard

A harmonous pairing of body-conscious articles of clothing producing the effect of a unitard or body suit.

A black spandex tanktop tucked into black leggings would be a two-nitard.

A leotard with leggings over it would be a two-nitard.

"I couldn't find the unitard for my interpretive dance class, so I threw together a two-nitard instead with my teal leotard and leggings."

"Her tunic was so sheer she had to wear a two-nitard under it."