What to Wear Under a Quarter-Zip: 7 Underpinnings That Work
What sits under a quarter-zip matters more than most men realise. The neckline frames whatever is beneath it, so the underpinning sets the tone of the whole outfit. Here is the definitive ranking, from the most reliable option down.
1. The short answer: a plain crew-neck T-shirt
White, navy, grey, or black — a clean crew-neck tee is the default that never fails. It keeps the outfit casual, it never competes with the knit, and it looks right with the zip at any height. If you take one thing from this article, take this. Our Highbury Quarter-Zip (£39) was designed with exactly this pairing in mind.
2. The open-collar Oxford shirt (the smart option)
For settings that need a half-step up: an Oxford button-down, collar open, untucked. The texture of the Oxford cloth sits well against knitwear, and the open collar echoes the quarter-zip's own neckline. Keep it casual — tucked and buttoned-up is a different outfit entirely.
3. A polo, worn buttoned up
A fine-knit polo under a quarter-zip is an underused combination. Worn with the placket buttoned, the polo collar peeks out just enough to add structure at the neck. It bridges the gap between the tee and the shirt — smarter than the first, easier than the second.
4. A fine roll-neck for deep winter
When the temperature drops properly, a thin roll-neck under a quarter-zip is one of the warmest combinations you can wear without a coat. Keep the roll-neck fine-gauge; anything chunky bunches at the collar and ruins the line. Navy under charcoal, charcoal under navy, ecru under olive — tonal dressing does the work here. This is a combination for cold days rather than heated offices; two layers of knitwear indoors will have you reaching for the zip within the hour, which rather defeats the object.
5. A Breton stripe for a pop of pattern
If the quarter-zip is plain, a Breton stripe underneath adds interest without effort. The horizontal stripe against a clean knit is a classic French-casual pairing — navy and white under a navy knit, or the reverse. One pattern at a time, though — a striped tee under a patterned knit is a fight nobody wins. Keep the rest of the outfit quiet and let the stripe do the talking.
6. What to avoid: the tucked-in business shirt and tie
This is the combination that gave the quarter-zip its corporate reputation, and it is the one to retire. A tucked-in shirt with a tie under a quarter-zip reads as office dress-down, not style. If the occasion needs a tie, it needs a proper jacket instead.
7. Fabric and colour rules for what sits underneath
Two principles cover everything. First, the underpinning should be lighter in weight than the knit — heavy fabrics bunch and pull at the collar, and a thick seam under a fine knit shows through. Cotton jersey, fine Oxford cloth, and lightweight merino are the safe choices. Second, keep colours quiet: white, navy, grey, ecru, olive. The quarter-zip is the statement; what sits beneath it is the support act. A useful test: if the underpinning would look odd on its own with your trousers, it will look odd under the knit too. For the outfit-level rules — trousers, shoes, fit — see our seven rules for wearing a quarter-zip well.
The right underpinning is a small decision that pays off every time you get dressed. Start with the tee, experiment from there — the polo for smarter days, the Oxford when the occasion asks for it — and let the quarter-zip collection do the rest.