I worked in news for several years in the UK. All our Westminster (i.e. political) reporters wore suits. A blazer & khakis would be acceptable, but all this stuff about wearing ill fitting rags is poor advice. If you dress like a slob, the pols will treat you like one. I would suggest you show a little class.
Bought these from Ed Morel in his recent clearout, but decided they are not for me.
Incotex. White cotton, flat front, 34 W, unhemmed leg, split waist, zip fly, 4 pockets. Fit is slim to normal.
New (with tags cut to prevent return.)
$55 shipped CONUS.