breeches

US /ˈbrɪtʃ.ɪz/
UK /ˈbrɪtʃ.ɪz/
"breeches" picture
1.

trousers reaching to or just below the knee, worn for riding horses or for hunting.

:
He wore traditional riding breeches and a tailored jacket.
The hunter's breeches were made of sturdy tweed.