Bra

A bra was an item of clothing designed to support and conceal a woman's breasts.

Peri Brown wore a ruby bra when she went swimming. (TV: Planet of Fire) Amy Pond similarly wore one under her nightie. (TV: The Beast Below)

Along with women's underwear, bras were sold in a "ladieswear" section in shops. Craig Owens questioned Kelly about a "metal rat" in the ladieswear section, leaning on a rack of bras. (TV: Closing Time)

Sally Morgan kept sports bras in her room in the Black TARDIS, which she used as proof that it was definitely her room and not Hex's. (AUDIO: Black and White)

While possessing the body of Rose Tyler, the Lady Cassandra kept a special knockout perfume concealed in Rose's bra. (TV: New Earth) In 2007, an edition of the magazine Peach featured celebrity children's television presenter Sadie, wearing only a bra, on the front page. The issue included an article about her "confessing" that "I'm no angel." (TV: Out of Time)

During the meteor strike that hit the Starship Harmony and Redemption, the Twelfth Doctor and River Song fell through a floor. A minute later, a diamond that River had been about to sell also fell. Instead of catching it with her hands, she decided to catch and keep it in her bra. (TV: The Husbands of River Song)

The Thirteenth Doctor implied there wasn't many in the TARDIS wardrobe; plus she would need to figure out what sized fit her. (TV: The Woman Who Fell to Earth)