Most men today wear underwear under a kilt, and the best choice is a snug pair of briefs or short-leg boxer briefs in a dark colour that stays hidden above the hem. The old "nothing underneath" tradition makes a good story at the bar, but a close-fitting layer keeps you comfortable through a long ceremony, a lively ceilidh and a windy photo session outside.
The tradition, and what men actually do now
The idea of going "regimental" comes from the days when a kilt was everyday working clothing and underwear as we know it simply wasn't part of the outfit. Today the kilt is mostly worn for occasions: weddings, Burns Night, St Andrew's Day, graduations, Highland games and Hogmanay parties. Those events come with dancing, sitting on low chairs, climbing in and out of cars and plenty of cameras.
That is why the modern answer is practical rather than romantic. Many hire shops ask you to wear underwear with a rented kilt, and many pipe bands and dance groups expect dark shorts or underwear underneath. Wearing a pair is not "cheating"; it is just the sensible way to enjoy a full day in heavy wool.
Why the cut matters more than under trousers
A kilt behaves very differently from trousers. There is no inseam holding anything in place, the pleats swing with every step, and the hem usually sits around the middle of the knee. Three things follow from that:
- Support has to come from the underwear itself. A contoured pouch and a firm waistband do the job a trouser seam normally does.
- The leg must stay short and stay put. A leg that rolls up bunches under the pleats; a leg that is too long can show when you sit or kneel.
- Wool is warm. A traditional kilt uses several metres of tightly woven cloth, so a breathable fabric underneath keeps things comfortable in a heated hall.
Which underwear works best under a kilt
| Style | Best for | Watch out for |
|---|---|---|
| Briefs | Most secure feel, nothing near the hem, easy under a sporran belt | Pick a firm waistband so it doesn't slip during dancing |
| Short-leg boxer briefs | All-day weddings, a bit more coverage when sitting | Choose a short leg that doesn't ride up into the pleats |
| Compression boxer briefs | Highland games, energetic ceilidhs, long days on your feet | Longer leg: check it stays well above the kilt hem |
| Loose boxers | Rarely the right call | Fabric bunches and can peek out when you sit |
Briefs: the safe, classic choice
Briefs leave nothing to chance at the hem. Our Cotton Briefs use 95% cotton and 5% spandex, with a contoured pouch, a sturdy elastic waistband and a tagless finish, in sizes S to XXL. If you like a sportier look, the Cotton Sport Briefs (93.2% cotton, 6.8% spandex) have a 1.5-inch elastic waistband and a snug cut designed not to ride up.
Short-leg boxer briefs: comfort for the long haul
A wedding in a kilt can easily run from a morning ceremony to a midnight ceilidh. Short-leg boxer briefs give a little more coverage when you sit on low chairs or kneel for photos. The Mesh Boxer Briefs have all-over mesh for airflow, a roomy pouch and a low-rise, short-leg cut, in 12 colours from S to XXL. For a smoother feel, the Silky Textured Boxer Briefs are made from 96% polyamide and 4% spandex, tagless, with a U-shaped pouch.
Colour: dark beats bright
Kilt cloth is thick, so nobody sees your underwear while you stand. The risk is the flash of colour when you spin during a reel or step out of a car. Black, navy and dark grey disappear against almost any tartan. Save the bold red or sky blue pair for the evening after the official photos, or for a kilt in a matching tartan if you want a playful touch.
If you are part of a wedding party, agree on dark underwear the same way you agree on hose and flashes. It sounds fussy, but it saves anyone from becoming the story of the day.
Occasion by occasion
- Weddings: a breathable short-leg boxer brief for the long day; pack a spare pair for the evening. Our wedding day underwear guide has more tips for grooms.
- Burns Night and St Andrew's Day dinners: mostly sitting, so a soft cotton brief keeps things relaxed through several courses.
- Ceilidhs and Highland games: energetic movement calls for a firm waistband and a close fit. Compression Boxer Briefs in 89% polyamide and 11% spandex offer 4-way stretch, a tagless waistband, enclosed leg openings and an open fly pouch with a soft liner, in S to XXL.
- Hogmanay parties: heated rooms and a lot of dancing; mesh lets air move under the wool. See our New Year's Eve outfit ideas for the rest of the look.
Fit checklist before you leave the house
- Sit down on a low chair in front of a mirror: nothing should show below the hem.
- Do a quick spin or a few dance steps: the waistband should stay level and the legs should not roll.
- Check the kilt belt and sporran strap don't sit right on top of a thick waistband seam.
- Between sizes? A snug fit matters more under a kilt than under trousers, so check the waist chart on each product page.
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Frequently asked questions
Is it disrespectful to wear underwear under a kilt?
No. Going without is a tradition and a joke, not a rule. Most kilt wearers today, including many performers and hire customers, wear underwear.
Should I wear briefs or boxer briefs under a kilt?
Both work. Briefs keep everything well away from the hem; short-leg boxer briefs add coverage when sitting. Avoid loose boxers, which bunch under the pleats.
What colour underwear is best under a kilt?
Black, navy or dark grey. They stay invisible if the kilt swings up during dancing or when you sit down.
Can I wear compression shorts under a kilt?
Yes, as long as the leg ends well above the kilt hem. Check by sitting and kneeling in front of a mirror before the event.
Find your pair before the next big event
Browse our men's briefs and boxer briefs to find a snug, dark pair for your kilt, or explore cotton underwear for long dinners and compression wear for active days. Every order ships in discreet packaging.
