What to Wear Under a Kilt
What to wear under a kilt, answered without the innuendo: what the historical record shows, what kiltmakers advise, and why a brief is right for a wedding.
Briefs for the Office: The Tailoring Argument
Slim trousers ended the underwear debate years ago. Why briefs are the only correct choice under tailoring, and the three pairs that work hardest from 9 to 5.
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You know the moment. You put on a decent pair of trousers over the underwear you've always worn, look in the mirror, and there it is: a soft interruption in the line of the thigh. A gather. A bunch. You adjust it. It comes back. You spend the rest of the day in quiet negotiation with your own clothing.
That moment is the entire case for briefs under tailoring, and it's why the world's tailoring capitals never had this argument in the first place.
The trousers already decided
Feel however you like about slim tailoring; it won, and office trousers have been cut close for twenty years now. Close-cut trousers have no room for spare fabric underneath. Loose boxers under slim trousers are a category error, shorts worn under shorts, pleats smuggled beneath a garment designed not to have any.
The brief solves the problem by having nothing to bunch. It sits flat, ends before the thigh begins, and disappears. Italy, a country that treats trousers as a minor art form, kept the slip as its majority choice through every trend cycle for exactly this reason. The people who care most about how trousers hang reached the same conclusion your mirror keeps suggesting.
What briefs do between 9 and 5
They vanish under wool. No lines, no gathered fabric shadowing through lighter cloth.
They survive the commute. Cycling in, running for the Luas or the Tube: support matters in motion, and a brief moves with you rather than around you.
They stay put in a chair. Eight seated hours is where boxer legs ride and twist. A brief has no legs to ride.
They cope with overheated offices. Less fabric, less heat, and modern modal wicks as well as any sports base layer.
They keep the shirt tucked. A proper rise gives the shirt tail something to sit against. Small benefit, real benefit, and tailors will confirm it.
They solve the gym-at-lunch problem. One garment that works under trousers at nine and in a spin class at one. The Jockstrap Never Left the Locker Room
The three-pair office rotation
The classic under wool: a fine-gauge cotton or Feinripp brief. Breathable, structured, invisible. Schiesser Feinripp brief
The modern under everything: micro-modal, minimal seams, the closest underwear gets to not existing. Save this pair for your best trousers. CDLP brief · Ron Dorff brief
The Friday pair: a continental slip with some colour in it, because underwear is allowed to be enjoyable even when the calendar isn't. Le Slip Français slip
The quiet professional's secret
One detail settles this. Surveys keep finding that a solid quarter of men, including plenty of sharply dressed ones, already wear briefs and simply never mention it. In Britain, one man in five buys his underwear at M&S, where the classic brief has never once left the shelves. The brief didn't disappear from the office. It just stopped announcing itself. The same quiet consensus holds at a Scottish wedding, where the question everyone asks in the pub gets a far duller answer from the people who actually hire out the kilts. What to Wear Under a Kilt
Which, come to think of it, is exactly what good tailoring does too.
Ready to rebuild the drawer properly? Making the Switch: The 14-Day Brief Plan