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What’s This About
Long tailored coats such as overcoats, Chesterfields, topcoats, trench coats and macs work best over a suit, while short casual jackets are better with jeans and chinos.
This guide explains how to choose and wear a coat over a suit, such as
Which coats sit well over a suit and which are usually kept for casual outfits
A table of twenty coats and jackets with outfit, season and occasion ideas
How to fit an overcoat over a suit jacket
How to wear a trench coat with a suit in rain and mild weather
When a peacoat can work over a suit
and many more!
The best coat for you is the one that fits over your jacket and suits your weather.
Key Points
01Try a coat on over the suit jacket you will wear under it.
02The coat should cover the whole suit jacket.
03Navy, charcoal, grey and camel coats go with most suits.
04A peacoat can work over a slim suit on a less formal day, but an overcoat looks neater for formal occasions.
The right coat over a suit keeps you warm and dry without crushing your jacket or clashing with its formality.
Long tailored coats such as overcoats, Chesterfields, topcoats, trench coats and macs are the usual choices, while short casual jackets are better kept for jeans and chinos.
This guide shows which coats work over a suit, which are best kept for casual outfits, and how to fit and style the three coats most often worn with tailoring.
Coats that work over a suit
Coats that sit well over a suit are overcoats, Chesterfields, topcoats, trench coats, mac coats, car coats and smart raincoats.
Each of these is long enough to cover a suit jacket and cut with room for one underneath.
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Coats usually kept for casual outfits
Duffle coats, shearling coats, parkas, anoraks, quilted jackets, varsity jackets, trucker jackets, field jackets, windbreakers, fleece jackets, bomber jackets, denim jackets and leather jackets are usually worn with casual clothes.
Most of them are shorter than a suit jacket, so the jacket hem hangs below the coat, and their casual details sit awkwardly with a tie.
A pea coat is a borderline case, covered in its own section below.
On a very cold commute, warmth matters more than any convention, so wear the coat that keeps you warm and take it off when you arrive.
What to wear and avoid over suits
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| Type | With a suit? | Outfit idea | Season | Occasion |
|---|---|---|---|---|
| Overcoat | Yes | Suit, dress shoes, formal shirt, tie | Autumn, winter | Formal, business |
| Trench coat | Yes | Suit, or chinos, a dress shirt and leather shoes | Spring, autumn, mild winter days | Business, smart casual |
| Pea coat | Sometimes, with a slim jacket | Jeans or chinos, a jumper, boots; or a slim suit on a casual day | Autumn, winter | Casual, smart casual |
| Duffle coat | Rarely | Casual trousers, a knitted jumper, boots | Winter | Casual |
| Parka | Rarely, for very cold commutes | Jeans, a jumper, boots | Winter | Casual, outdoor |
| Mac coat | Yes | Suit or business casual trousers, a shirt, leather shoes | Spring, autumn | Business, smart casual |
| Chesterfield | Yes | Suit, formal shirt, dress shoes | Autumn, winter | Formal, business |
| Topcoat | Yes | Suit, formal shirt, tie, dress shoes | Autumn, spring | Formal, business |
| Raincoat | Depends on the cut | Business or casual clothes, depending on the style | Spring, summer showers, autumn | Casual, business |
| Anorak | No | Casual trousers or jeans, a T-shirt, trainers | Spring, autumn | Casual, outdoor |
| Quilted jacket | Rarely | Jeans or chinos, a casual shirt, casual shoes | Autumn, winter | Casual |
| Denim jacket | No | Casual trousers, a T-shirt, trainers | Spring, autumn | Casual |
| Bomber jacket | No | Casual trousers or jeans, a T-shirt, trainers | Spring, autumn | Casual |
| Varsity jacket | No | Jeans, a T-shirt, trainers | Spring, autumn | Casual |
| Trucker jacket | No | Jeans, a T-shirt or casual shirt, casual shoes | Spring, autumn | Casual |
| Shearling coat | Rarely | Jeans, a knitted jumper, boots | Winter | Casual, smart casual |
| Leather jacket | No | Jeans, a T-shirt or casual shirt, casual shoes or boots | Spring, autumn | Casual, evenings out |
| Field jacket | No | Chinos or jeans, a casual shirt, casual shoes | Spring, autumn | Casual, outdoor |
| Windbreaker | No | Sportswear, trainers | Spring, summer | Casual, sport |
| Fleece jacket | No | Casual trousers, a T-shirt or long-sleeve top, casual shoes | Autumn, spring | Casual, outdoor |
Seasons in the table are rough guides; choose by the temperature and the weight of the cloth rather than the month.
Choosing a coat for a suit
Start by deciding what you need the coat to do.
How formal are the suits you wear most often?
Is the coat mainly for cold, for rain or for both?
Will you also wear it over knitwear and casual trousers at the weekend?
A trench coat, for example, suits rain and mild weather, while a wool overcoat suits cold, dry days.
Choose a colour that goes with most of your suits and your winter wardrobe; navy, charcoal, grey and camel are the easiest, and burgundy or green coats are an option once you have a neutral one.
Shoes matter too, and black or dark brown leather lace-ups and smart boots, such as Chelsea or chukka boots, sit well under a long coat.
If you are buying one coat to wear over your suits, think about the suits you wear in cold weather, because they are usually heavier and darker than your summer suits.
The overcoat, the easiest coat to wear with a suit
An overcoat works over almost any suit, from a navy business suit to a dinner suit.
Grey, charcoal, navy, black and camel are the most versatile colours, and they suit both business outfits and evening events.
If you have a coat made to measure, you can choose details such as the pockets, buttons and lining.
An overcoat also pairs well with a double-breasted suit, because the long, straight line of the coat suits the broader front of the jacket.
How to wear an overcoat with a suit
The overcoat has been a classic wardrobe staple for well over a century, because it keeps you warm while protecting the suit underneath.
A full overcoat usually reaches just below the knee, while a topcoat is a little shorter and lighter; both come single-breasted or double-breasted.
For fabric, wool overcoats work over most suits, and flannel and tweed suits look at home under tweed or herringbone coats.
As for fit, the coat should button over your suit jacket without pulling, and the sleeves should end about an inch longer than your jacket sleeves so they cover your shirt cuffs.
Pair the overcoat with leather Oxfords, brogues or Chelsea boots.
A wool or cashmere scarf in a simple knot and leather gloves add warmth and finish the outfit.
A charcoal overcoat over a navy suit is a classic colour combination, and earthy browns or a check overcoat give a more relaxed look.
If your suit is patterned, a plain coat is easy to wear, and a patterned coat is easiest over a plain suit; mixing two patterns works best when their scales are clearly different.
Trench coats with suits
A trench coat over a suit is a practical choice for rainy spring and autumn days, because the gabardine sheds light rain and the belt lets you close the coat against the wind.
How to wear a trench coat with a suit
Around the knee is the most versatile length over a suit, long enough to cover the jacket.
Beige and khaki are the traditional colours, and navy, olive and black also work over most suits.
For fabric and pattern, a plain trench coat is the easiest partner for a patterned suit.
For the fit, try the coat on over your suit jacket, and check that you can fasten it and lift your arms comfortably.
Choose polished leather shoes or smart Chelsea boots.
A plain or quietly patterned scarf adds warmth on cold days.
Open or closed? Wear the coat open in mild weather to show the suit, or button it and fasten the belt when it rains; many men tie the belt loosely at the back when the coat is open.
Turning the collar up keeps rain off your neck, and you can fold it down again indoors.
Wearing a peacoat with a suit
Whether a peacoat belongs over a suit is a matter of taste, and menswear writers disagree.
The peacoat comes from naval dress and was designed to keep sailors warm while letting them move freely on deck.
It is traditionally made of heavy, dense navy wool, such as melton, and it is warm for its length.
A traditional peacoat is double-breasted with broad lapels and large buttons, and modern versions come in other colours and occasionally single-breasted.
Peacoats end at the hip or upper thigh and are often cut close to the body, which is why they are less comfortable over a suit than an overcoat.
A suit jacket that is longer than the peacoat shows below its hem, and a thick jacket can bunch under a slim coat.
If you want to wear one with a suit, choose a peacoat with room in the chest and a slim, short suit jacket underneath, and keep it for less formal days.
Navy is the classic peacoat colour and goes with grey, navy and brown suits.
For shoes and accessories, wear polished leather shoes and a wool scarf on cold days.
Coats over suits do’s and don’ts
Do
Check the fit of the coat over the suit jacket you will actually wear under it.
Choose a coat long enough to cover the whole suit jacket.
Start with a versatile colour such as navy, charcoal, grey or camel.
Match the cloth to the weather, with heavier wool or cashmere for cold winters and lighter cloth or gabardine for mild weather.
Add a scarf, gloves or a hat that suit both the coat and the suit.
Don’t
Wear so many layers under the coat that it pulls across the chest.
Pair two bold patterns of the same scale.
Forget your shoes, because scuffed or very casual shoes undo a smart coat and suit.
Choose a coat shorter than your suit jacket for formal occasions.
Pile on accessories; a scarf and gloves are usually enough.
Buy a coat so tight that it creases the suit underneath.
Coats over suits FAQs
Q. What types of coats can be worn with a suit?
Overcoats, Chesterfields, topcoats, trench coats, mac coats, car coats and smart raincoats are the usual choices.
They are long enough to cover the suit jacket and formal enough to match it.
Q. How do I choose the right coat for my suit?
The coat should be long enough to cover the suit jacket.
For fit, it should button over the jacket without pulling.
Navy, charcoal, grey and camel are colours that go with most suits.
Choose by occasion, with an overcoat for formal events and cold weather and a trench coat or mac for rain and milder business days.
Q. Can I wear a pea coat with a suit?
You can, especially on a less formal day, if the peacoat has enough room for a slim suit jacket underneath.
Because a peacoat is often no longer than a suit jacket, an overcoat looks neater for formal occasions.
Q. What should I consider when pairing a trench coat with a suit?
A length around the knee is the most versatile.
Beige, khaki, navy and black are versatile colour choices.
Check the fit by trying it on over the suit jacket.
Accessorise with polished leather shoes and a plain scarf in cooler weather.
Q. How do I make sure my coat and suit look good together?
For fit and length, the coat should fit over the jacket and cover it.
Choose colours that sit well together, such as camel over navy or charcoal over grey.
Dress for the weather, with heavier cloth for cold days and lighter cloth for mild ones.
Keep to a few accessories that suit both the coat and the suit.
Q. Are there any mistakes to avoid when wearing a coat over a suit?
Bulky layers that make the coat pull.
Two bold patterns of the same scale.
Scuffed or very casual shoes.
A coat too tight or too short for the jacket.
Q. How should I care for my coats?
Hang coats on broad, shaped hangers in a cool, dry place, and brush wool coats after wear.
Clean them only when they need it, following the care label; wool and cashmere coats usually need professional cleaning.
Q. Can I personalise my coat?
Yes, a made-to-measure or bespoke overcoat or Chesterfield lets you choose details such as the pockets, buttons and lining.
Q. Which shoes go with a coat and suit?
Leather Oxfords, brogues, Derbies or Chelsea boots in black or brown, chosen to suit the colour of the suit.
Q. Is it okay to wear a coat with a casual suit?
Yes, a mac or a trench coat looks smart but relaxed over a cotton, linen or casual wool suit.
Q. Can I wear suit trousers and a shirt and leave my suit jacket at the office?
Yes, many people commute in an overcoat over a shirt and suit trousers and keep the jacket at work.
For a business lunch or meeting outside the office, take the jacket with you if the setting calls for a full suit.
Sources
Permanent Style, Tips on buying an overcoat (2015), on sleeve and coat length over a jacket.
Overcoat and Pea coat, Wikipedia, on overcoat and topcoat lengths, peacoat cloth and cut.
Smithsonian Magazine, The Classy Rise of the Trench Coat (2015).