The difference is straightforward: a single-breasted overcoat fastens in one central column of buttons, while a double-breasted overcoat has a front that overlaps, with two columns of buttons and more cloth crossing the body. That one construction choice changes almost everything else — how the coat fits, how wide you look, how formal the coat reads, and how it behaves worn open. Neither is better. They are different tools, and choosing between them is mostly a matter of your build, your wardrobe, and how you actually wear a coat.
The difference, plainly
A single-breasted coat closes edge to edge down the centre. The line is clean and uninterrupted, the fastening is simple, and the coat looks as good worn open as closed. Most have three or four buttons, sometimes hidden under a fly front.
A double-breasted coat wraps: one side of the front crosses over the other and fastens to the side, with typically six or eight buttons, of which only some fasten. The overlap creates a double layer of cloth across the chest and a stronger horizontal emphasis at the waist and shoulders.
How each one fits your body
This is where the decision is usually made. The double-breasted front adds visual width. On a tall or broad man, that width looks deliberate and well-proportioned; the coat has presence. On a shorter or slimmer man, the extra cloth and the wide button stance can overwhelm the frame — the coat arrives before he does. Double-breasted coats are also cut to be worn fastened. Worn open, the overlapping front hangs loose and the line collapses, so the style demands a certain commitment every time you put it on.
The single-breasted coat is the more forgiving fit. It follows the body rather than restructuring it, works on almost every build, and can be worn open over knitwear without losing its shape. If you are between sizes or your weight moves across the year, a single-breasted coat tolerates that better, because its single column of fastening has more give visually even when the fit is snug.
One practical point: because of the overlap, a double-breasted coat worn buttoned puts two layers of cloth over your chest and stomach. In a British winter that is welcome. In a heated office worn over a suit, you may feel it.
Formality: where each belongs
The double-breasted overcoat reads more formal and more structured. It has a ceremonial quality — it suits weddings, formal workplaces, and any occasion where a coat is part of the presentation rather than just transport. It pairs naturally with tailoring and looks slightly costumed with very casual clothes.
The single-breasted overcoat covers a wider range. Over a suit it is entirely correct; over a quarter-zip and chinos it still looks considered; over knitwear at the weekend it is simply a good coat. If one overcoat has to do everything in your wardrobe, it is almost always the single-breasted one.
Layering underneath
Think about what the coat must swallow. A double-breasted coat, worn fastened as intended, has less tolerance for a very thick jumper beneath it — the overlap needs to lie flat. A single-breasted coat is the better layering piece: it closes over a suit jacket or a substantial knit with less strain, and worn open it frames layers rather than fighting them. Men who dress in layers through the week generally get more wear from the single-breasted cut.
The worked example: two coats, one range
Our own range contains one of each, which makes the contrast concrete. The Hampstead overcoat (£197.95) is the single-breasted version: a longline coat with a clean centre fastening — the versatile choice, and the one we would point a first-time overcoat buyer towards. The Greenwich coat is the double-breasted counterpart: more structure, more presence, a coat that dresses up everything beneath it and rewards being worn buttoned and deliberate.
Both are examined alongside the rest of the style in our men's longline overcoat guide, which covers length, cloth and styling in more depth. WARDLEY orders are dispatched within 1–2 working days with free tracked UK delivery (delivery in 6–10 working days from order) and 30-day returns.
The Greenwich's fit, specifically: it is a regular fit, cut to layer over a jumper. If you are between sizes and plan to wear it over chunky knitwear, size up — the overlapping front needs to lie flat when fastened, and a double-breasted coat that pulls at the buttons loses the shape that makes it worth choosing. Compare both coats side by side in the men's overcoats collection.
Small details that follow from the cut
The breast configuration brings practical companions. Double-breasted coats often carry a half-belt or martingale at the back and broader lapels at the front — details that suit their structured character and that look fussy if the coat is worn open and flapping. Single-breasted coats more often hide their buttons under a fly front, which produces the cleanest possible line for men who prefer understatement. Vents differ too: a centre vent is standard on both, but the double-breasted coat's overlap means its vent works harder when you sit, and a well-cut one will fall back into place without adjustment.
Climate deserves a word. In the wettest British weeks, the double-breasted coat's wrapped front keeps driven rain away from the layers beneath it slightly better than a centre fastening does. It is a small advantage, but on a February platform in sideways weather, small advantages are the ones you notice.
Price and wardrobe maths
Neither style is inherently more expensive; the double-breasted coat simply uses more cloth, which is sometimes reflected at the very top of the market and rarely at sensible prices. The real cost question is wear per pound. A single-breasted coat that goes over suits, knitwear and weekend clothes may be worn four days a week; a double-breasted coat saved for formal days may be worn four times a month. Buy the style your calendar will actually use, and the cost per wear will look after itself.
The decision, in one paragraph
Buy double-breasted if you are tall or broad, dress formally most days, and will wear the coat fastened — it will look like it was made for you. Buy single-breasted if you want one coat for suits, knitwear and weekends alike, if you run shorter or slighter, or if you know you will wear it open as often as closed. The honest test is not the mirror in the shop; it is imagining the coat on your wettest, busiest Tuesday in January.
Frequently asked questions
Is a double-breasted overcoat warmer than a single-breasted?
Slightly, yes — the overlapping front puts two layers of cloth across your chest, which blocks wind effectively. The difference is real but modest; cloth weight and your layers matter more.
Can a short man wear a double-breasted overcoat?
He can, but it is the harder of the two to carry. Keep the length at the knee rather than below it, ensure the fit is close rather than generous, and always wear it fastened. If in doubt, the single-breasted cut is the safer proportion.
Do you button all the buttons on a double-breasted coat?
No. Typically only the middle or lower set fastens — the rest are decorative, setting the width of the stance. Which buttons fasten depends on the coat's cut; the product's own photographs will usually show it worn correctly.
Which is more formal, single or double-breasted?
Double-breasted, by a clear margin — it reads as the more ceremonial, tailored choice. Single-breasted over a suit is still entirely formal enough for almost any workplace or occasion; it simply extends further down into casual wear as well.
Which overcoat style goes out of fashion less?
Both are long-standing classics rather than trend pieces. Single-breasted coats have the edge in sheer versatility across decades of styling, but a well-fitted double-breasted coat has never looked wrong in a British winter.
Shop the range
Both camps in the current range: the double-breasted peacoat (£257.95) at mid length, the belted trench coat (£277.95) for the wrapped front, and the stand collar coat (£357.95) for neither — a closed neckline instead.
The rest of the cold-weather range is in winter coats and outerwear; every long coat is in men's overcoats.