These vintage riding breeches are British army issue.  They are wool with chamois patches on the inside thighs.  Button fly, exterior suspender buttons, and a thigh pocket.  No rear pockets.  Broad arrow stamp inside.  They measure 7″ across (14″ diameter) at the knee. They don’t look as though they saw much use, but have some moth damage from storage.  They are size 32×27