Culottes
From Tardis Wiki, the free Doctor Who reference
Culottes were an item of clothing worn on the lower half of the body; to either split skirts, historical men's breeches, or women's underpants.
The Thirteenth Doctor wore teal culottes. (TV: The Woman Who Fell to Earth-The Power of the Doctor) She also wore black ones with her tuxedo. (TV: Spyfall)