Trousers were an item of clothing typically worn to cover the legs. A suit which included trousers was known as a trouser suit.

The Sixth Doctor typically wore trousers with yellow stripes. While acting as his successor, Jack Harkness wore the Sixth Doctor's coat along with his seventh favourite waistcoat and yellow-stripped trousers. (AUDIO: Piece of Mind)

At Coal Hill School in the 1960s, girls were not permitted to wear trousers. Basil James Carker, the headmaster, had turned down dozens of petitions that girls be allowed to wear trousers to school. They instead had to wear skirts or tunics. Susan Foreman commented in her diary that "[she thought] he'd be happiest if we had to wear Mohammedan veils and Idaho potato-sacks". (PROSE: Time and Relative)

Ianto Jones used a trouser press. (AUDIO: Believe)

Cathy Salt wore a brown trouser suit. (TV: Boom Town)

While investigating Adipose Industries in 2009, Donna Noble wore a black trouser suit on Wednesday. Penny Carter wore a grey trouser suit. (TV: Partners in Crime)

Having sustained a severe leg wound, blood was spread across Stella's trousers. (PROSE: Prisoner of the Daleks)