Friday morning, a few minutes before eight. You are standing in front of the wardrobe with a navy blazer and a white polo, wondering whether the two look off side by side. It is a fair question: wearing a blazer with a polo shirt sits right on the line between neat and sloppy, and the difference comes down to a few details such as the type of polo, the collar and the colour of the trousers. This article gives a concrete formula you can use tomorrow morning.
Quick answer
You can wear a blazer with a polo, provided you choose a fine-knit or medium-weight piqué polo, a soft collar that lies flat under the lapel, and a blazer with little shoulder padding. Open only one button at the collar, and tuck the polo in if you wear a belt. The easiest formula: navy blazer, white polo, grey or beige trousers, brown derby shoes.
Why a blazer with a polo is true smart casual
A polo is by origin sportswear, and a blazer is a garment of formal places. Placed side by side they neutralise each other: the blazer lifts the polo, the polo brings the blazer down. The trade rule is simple: one formal piece with one relaxed piece, keeping the formal side in the trousers and shoes and the relaxed side in the shirt underneath.
It is worth separating a blazer with a polo from a matching suit with a polo. If the jacket and trousers are cut from the same cloth, a suit worn with a polo looks like you forgot your tie. Only when the blazer differs from the trousers in cloth and colour is the smart-casual picture complete.
Knit polo or piqué polo?
| Polo type | Surface | Suits which blazer | Occasion |
|---|---|---|---|
| Piqué (honeycomb-weave cotton) | Small texture, medium weight, holds the collar shape | Cotton, linen, light wool blazer | Weekends, hot weather |
| Fine knit (mercerised cotton, jersey) | Flat, drapes well, slight sheen | Wool blazer, firmly woven cloth | Office, no-tie meetings |
| Wool-knit polo (merino, wool blend) | Soft, warm, drapes beautifully | Wool blazer, light tweed | Cool season, air-conditioned rooms, dinner out |
You will find that a piqué polo is better behaved under a blazer because its medium weight holds the shape, while a thin knit polo drapes beautifully but easily shows the belly or creases if it is tight. A wool polo is the most elegant choice, especially under a wool blazer.
Structured collar or soft collar?
Polos have two kinds of collar. A soft collar (without interfacing) lies flat naturally beneath the lapel, and is the kind to choose when wearing a blazer. A structured collar has interfacing or a stiff collar band, and easily flips away from the lapel so the collar looks pushed up. A quick test: lay the blazer over the polo, and if the polo collar flips off the lapel, choose another.
Three colour palettes for a blazer with a polo, for the office and the weekend
| Occasion | Blazer | Polo | Trousers | Shoes |
|---|---|---|---|---|
| Friday at the office | Navy | White or light grey | Mid-grey or beige | Brown derby, plain leather loafers |
| Weekend, coffee | Beige or light brown | Moss green or cream | Navy or grey | Suede loafers |
| Dinner out | Charcoal or deep navy | Black or navy knit | Dark grey | Dark brown or black leather shoes |
The general principle: three colours across the whole outfit is enough, with the polo as the second colour. Do not let the blazer, polo and trousers all stand out together, because the eye will not know where to stop.
Wearing a blazer with a polo shirt: 6 small details that separate those who know how
- Does the polo collar sit under or over the lapel? Under the lapel is standard; do not fold the polo collar out over the lapel like a sports jacket.
- The collar buttons. Undo one button, not fastened all the way, and not all three open. Fully buttoned looks stiff, fully open looks careless.
- The hem. If you wear a belt, tuck the polo in for neatness. If you leave it out, the hem must be short enough to end around the middle of the trouser waistband and must not fall over the pockets.
- The fit. The polo should fit the body, with sleeves hugging the biceps without being tight, and no creases showing over the belly. A loose polo makes the blazer balloon.
- Logos and patterns. Under a blazer, choose a plain polo with no large logo. A small logo on the left chest is acceptable, but a big logo overpowers the whole outfit.
- Shoes. Derby, plain leather loafers or suede loafers. Minimalist white sneakers should only be used with a soft, unstructured blazer.
Choosing a blazer to go with a polo
Not every blazer suits a polo. With a stiff blazer, heavy shoulder padding and shiny cloth, the polo looks out of place, like wearing sportswear to a party. Choose a blazer with soft or half-canvas construction, natural shoulders, a medium lapel and, ideally, patch pockets. The cloths that look most natural for this pairing include linen-wool blends, woven cotton, light tropical wool and hopsack.
With a made-to-measure blazer, you can ask the tailor to reduce the shoulder padding, use a half lining, choose patch pockets and make the jacket a little shorter. That is how Mon Amie works when a customer wants a blazer made specifically to wear with polos and open-collared shirts. For ideas on the cut, see the blazer collection before you come.
Pairing a polo with a blazer by body type
Tall men with broad shoulders look excellent in a fitted knit polo under a blazer, because the upper body already has volume. Men with a fuller belly should choose a medium-weight piqué polo in a dark single colour such as navy or charcoal, and leave the hem outside the trousers at a moderate length, avoiding thin knits that cling to the belly. Shorter men should choose a short blazer that just touches the hip, with a polo in the same tone as the trousers so the body reads as one line. Slim men can add texture, for example a ribbed wool polo or a blazer in a fine herringbone, to give the upper body more fullness.
Mistakes when pairing a blazer and polo
- A thin, tight jersey polo. Every crease shows, and the polished look is lost.
- The polo collar popped up. It looks like an attempt at style, but few people pull it off.
- A matching suit worn with a polo. Fine for a weekend at a resort, less suited to the office.
- A polo longer than the blazer. The polo hem shows below the jacket hem and the proportions are inverted.
- Forgetting the belt. A polo tucked in without a belt shows creases at the belly.
A tip from Mon Amie's master tailors
When trying on a blazer with a polo, stand before the mirror and raise both arms to shoulder height. If the polo collar flips off the lapel or the shoulders of the jacket ride up, the blazer does not fit yet. The shoulder cannot be altered, so choose by the shoulder first, and only then think about colour. You can also read more on styling in the articles on wearing a suit without a tie and wearing a suit with a T-shirt.
Frequently asked questions
Can you wear a polo under a blazer to work?
Yes, in a relaxed environment or on a Friday. Choose a fine-knit polo, a navy or grey blazer, tailored trousers and leather shoes. For a meeting with partners, go back to a shirt and tie.
What cloth works for a blazer and polo in hot weather?
A linen-wool blazer or an airy woven cotton one, with a white or pale blue piqué polo. Avoid shiny polyester because it is stuffy and looks cheap.
Is a wool polo under a blazer too hot?
Yes, if you wear it outdoors in the sun. But in an air-conditioned room, in the cool season or at dinner out, a wool polo suits very well. Choose a fine wool such as merino so the shoulders do not get thick.
Should you button the polo all the way under a blazer?
No. One open button is enough. Fully buttoned looks stiff, and more than two open makes the outfit less polished.
Do you need a pocket square with a blazer and polo?
Not required. Smart casual should lighten the accessories; a cotton pocket square folded flat is a small accent, but you need neither a tie nor a lapel pin.
A blazer made just for polos
If you find yourself wearing a blazer with a polo every week, consider having a soft-cut, natural-shoulder blazer made to your own measurements. You can try colours and cut first at the online suit design page, then book a session for bespoke tailoring so the master tailor cuts the pattern right on your body.