TL;DR (too long; didn't read):
- Mohair comes from the angora goat and is stronger, more resilient, and more heat regulating than wool, but stiff on its own, which is why it is woven as a wool mohair blend suit.
- Kid mohair fabric, taken from goats around six months old, is the finest grade, being softer and more drapey than standard mohair.
- A wool mohair blend holds vibrant dye and a slight sheen, making it ideal for mohair tuxedo formal wear, dinner jackets, and midnight blue evening suits.
- Mohair is harder to weave and tailor than worsted wool, so the cut should lean into its clean, sharp silhouette rather than fight its lack of drape.
- Mohair suit trousers look best flat fronted and take an exceptionally sharp crease.
- Mohair works beyond suits as separates, including sport coats, trousers in puppytooth or Prince of Wales check, waistcoats, and iridescent two-tone cloth.
Mohair suit fabric explained for the modern man
Mohair suit tailoring is one of those things you may have heard of without ever really knowing what it is. You might picture a slightly shiny suit, a sharp silhouette, a bit of swagger, and not much beyond that. So what actually is mohair, where does it come from, and why has it held such a distinct place in menswear for decades? If you have ever wondered whether a mohair suit belongs in your wardrobe, this is the guide that answers it.
Here is the short version. Mohair is a fibre with genuine character. It is strong, resilient, and surprisingly good at regulating temperature, which is why a wool mohair blend suit can work as an all year round cloth rather than a seasonal one. But it also has quirks that catch people out, from a natural stiffness to a sheen that some men love and others find a little too much. Understanding those qualities is the difference between a mohair suit that looks magnificent and one that feels like a mistake.
Over the years we have tailored a great deal of mohair, and it remains one of our favourite cloths to work with. In this style guide we will cover what mohair fabric actually is and where it comes from, what makes kid mohair the most prized grade, and why it is almost always blended with wool. We will look at why mohair suits so naturally to formal wear, dinner jackets, and tuxedos, why midnight blue mohair makes such a compelling evening suit, and how to style a mohair suit for both business and smarter occasions. Finally we will get into mohair as separates, from jackets and trousers to waistcoats, and how to approach the iridescent two-tone cloths that give this fabric its reputation. By the end you should know exactly whether you need some mohair in your tailoring wardrobe, and how to wear it well.
What mohair is and why it suits tailoring
Mohair is the fibre taken from the angora goat, and the finest of it has long come from South Africa. What sets it apart from wool is strength. Mohair is a very strong, resilient fibre, so it stands up to wear in a way that many cloths simply cannot. It is also hollow, which gives it genuinely useful properties for a suit. That hollow structure makes it heat regulating, so it stays cool in summer and can hold a little warmth in winter. This is exactly why a wool mohair blend suit earns its reputation as an all year round cloth rather than something you pack away with the seasons.
That resilience comes with a catch. On its own, mohair can be quite stiff, which is why it is almost always blended with wool. The wool brings drape and softness, the mohair brings resilience and its own distinctive character, and mixing the two together with care is how you arrive at a truly great tailoring cloth. Get that balance right and you have the best of both fibres in one suit. Get it wrong, and you end up with some of the cheaper mohair blends that lack that softness and never quite feel the part.
There is one more quality that makes mohair such a rewarding cloth to tailor, and that is how it takes colour. When mohair is dyed it holds wonderfully vibrant, rich colour, far more so than many fibres. Combine that with its resistance to dirt and its sheer durability and you begin to understand its appeal. We have seen well made wool mohair suits last for decades and still hold up beautifully, which tells you everything about how resilient this wool mohair blend really is. It is a fabric that rewards the investment, and that longevity is a large part of why we keep coming back to it.
Kid mohair and the wool blend that makes it wearable
Not all mohair is equal, and the most prized of all is summer kid mohair. This is the fibre taken from a young goat at around six months old, and the difference in quality is immediate. Kid mohair fabric is finer than standard mohair, noticeably softer to the touch, and a little more drapey once it has been spun into yarn. That extra refinement is what separates a genuinely luxurious mohair suit from the stiffer, coarser versions that give the cloth a lesser reputation. When you feel the best kid mohair, you understand at once why it commands the price it does.
Even so, mohair is rarely used entirely on its own, and for good reason. The fibre's great strength is also its awkwardness. In its pure form it can feel stiff and even a little scratchy to the hand, which is why the wool mohair blend suit exists in the first place. Blending kid mohair with worsted wool tames that stiffness. The wool contributes drape and a soft, comfortable handle, while the mohair holds onto its resilience, its sheen, and its remarkable ability to keep colour. A fine example is a cloth woven from around sixty percent kid mohair and forty percent worsted wool, a balance that keeps the character of the mohair while remaining a pleasure to wear.
Weaving mohair well is genuinely difficult, and this is where mill heritage matters. Because the fibre can be stiff and unforgiving, turning it into a cloth that keeps its best qualities yet still feels lovely against the skin takes real expertise. In the right hands it produces magnificent results, which is why the mohair blends that sit alongside our finest worsted suiting come from mills with a long history of working the fibre. The reward for that effort is a tailoring cloth that looks sharp, wears for years, and carries a depth of colour few other fabrics can match.
Mohair for formalwear, dinner jackets, and tuxedos
If there is one area where mohair has stayed both popular and properly understood, it is classic formal wear. Mohair tuxedo formal wear makes complete sense in a way that a daytime mohair suit sometimes does not. The very qualities that can feel a touch flash in a business setting, the slight sheen and the depth of colour, become an asset the moment the light drops. For dinner jackets and tuxedos, mohair is close to perfect, because it holds rich colour beautifully and carries just enough sheen to look elegant rather than dull under evening light.
There is a practical case for it too, and it is a strong one. Formal wear is, by its nature, something you might only wear a handful of times a year. If you are going to invest in a dinner jacket or tuxedo, you want it to serve you for ten years or more, and this is exactly where mohair earns its keep. A good wool mohair blend is such a long lasting cloth that it will comfortably see out a decade of occasional wear and still look sharp. That durability is why blends of wool and mohair have long been a natural choice for dinner jackets and tuxedos.
The result is a fabric that quietly does everything evening wear asks of it. It resists creasing and hard wear, keeps its shape through long evenings, and gives back that soft, refined lustre that separates genuine black tie tailoring from something more ordinary. A gentleman might feel a little overdressed in something slightly shiny during the working day, but for the evening it simply looks right. If you are building a formal wardrobe to last, mohair belongs at the centre of it.
Midnight blue mohair as an evening suit
If you were to own just one mohair suit, we would point you straight towards midnight blue. There is something about the pairing of this colour and this cloth that simply goes hand in hand, in the same way a grey flannel feels like the natural choice for a first flannel suit. Midnight blue mohair has an unmistakable evening feel to it, the kind of suit made for cocktails, for going out, for an occasion that asks for a little more than the everyday. It is elegant without trying too hard, and the sheen of the mohair only deepens the effect once the light is low.
It is worth being precise about what midnight blue actually means, because the term gets used loosely. Properly understood, a true midnight blue should be virtually black. The test is simple. If you look at the garment and genuinely cannot decide whether it is black or navy, then it is very likely midnight blue. A dark navy, however handsome, is not midnight. Real midnight is an almost black colour, so deep that it becomes indistinguishable from black under certain lights, and it is that quality that gives the suit its quiet drama in the evening.
This is exactly where mohair and midnight blue reinforce one another. Because mohair holds dye so richly and carries a subtle sheen, it renders that near black depth with a life that flatter fabrics cannot match. The colour looks solid and expensive, catching just enough light to register as something special without ever tipping into flashy. For anyone weighing up a first venture into this cloth, a midnight blue evening suit is the most versatile and elegant place to begin.
Styling a mohair suit for business and smart occasions
Mohair rewards a particular approach to cut, and the reason comes back to the fibre itself. Because mohair does not have the drape of a worsted wool, it is a little stiffer and does not fall and fold in the same way. The trick is to lean into that quality rather than fight it. Mohair holds a very sharp, clean silhouette, so a suit that plays to that strength will always look better than one trying to force softness the cloth simply does not have. A moderately waisted jacket with a clean line, a classic centre vent, and a moderate notch lapel that sits neither too high nor too low is a reliable starting point.
For a genuine business look, keep the styling crisp and let the cloth do the work. A grey mohair suit worn with a simple cutaway collar shirt in sky blue, a neat silk tie, and a tonal pocket square looks appropriate in almost any professional environment. Classic cap toe Oxfords finish it cleanly. If you have chosen a three button jacket, you will find it looks quite complete on its own, so there is no need for a waistcoat unless you particularly want one. The sharpness of the cloth carries the outfit without any need for fuss.
The same suit stretches comfortably into smarter occasions, which is part of what makes it such a useful thing to own. Swap the business shirt for a softer coloured one, reach for a favourite printed silk tie and a complementary pocket square, and the same sharply tailored suit becomes something you could wear to a wedding or a smarter event. Black shoes suit it best, whether classic Oxfords, sleek loafers, Chelsea boots, or a very dark brown suede. It is not conservative business dress in the strictest sense, but that slight edge is precisely what makes it so versatile.
Mohair as separates: jackets, trousers, and waistcoats
Mohair tends to be pigeonholed. People think of formal wear, evening suits, and tuxedos, or they think of full suits, and the fabric's usefulness as a separate cloth gets overlooked entirely. That is a shame, because mohair makes a genuinely good jacketing and trousering, and once you start using it that way it earns a permanent place in the wardrobe. If you want a cocktail jacket, the kind you can wear out in the evening, to a wedding, or alongside black tie, mohair is a wonderful vehicle for colour. A chocolate brown mohair cocktail jacket, for instance, turns out to be far more versatile than you might expect, at home in the evening and perfectly wearable in the day.
Mohair suit trousers deserve particular attention, and they are the ideal way in if you are nervous about committing to a full suit. A pair of wool mohair trousers lets you get a feel for the cloth, and they are fantastic in their own right. Choose a fabric such as puppytooth or Prince of Wales check, or even one of the iridescent cloths, and pair it with a plain jacket for a look that adds real interest to your wardrobe. Best of all, mohair takes a superbly sharp crease, so if you like a really clean line down the front of the trouser, this is the cloth that delivers it. On that note, mohair generally looks its best flat fronted rather than pleated, because the fibre's stiffness means pleats do not sit as cleanly as they do on a softer cloth like flannel or fresco.
The same rich colour collection that makes mohair such good jacketing also makes it excellent for an odd waistcoat, especially when you are hunting for a particular shade for a wedding or an occasion. So if you are building a less formal wardrobe, or thinking in terms of separates and a capsule of pieces that mix easily, do not overlook it. Flannel and fresco are both superb, but working a little mohair into your tailored trousers and odd jackets gives you some genuinely great looks that the more predictable cloths cannot.
Choosing an iridescent two-tone mohair
One of the things most closely associated with mohair is the iridescent two-tone effect, that shifting play of colour where a suit reads as one shade in one light and another as you move. You can achieve this look in a variety of fabrics, but mohair does it better than almost anything, and the reason is simple. Because mohair holds dye so beautifully, it produces these two-tone cloths with a vividness and clarity that other fibres struggle to match. Reds and greens, yellows and blues, silvers and blacks, the combinations can be striking, and the fibre's natural sheen only heightens the effect.
It is worth being clear about what this look is and is not. An iridescent two-tone mohair is a distinct fashion statement, and it falls firmly outside conservative business dress. This is not the cloth for a boardroom, and it never has been. Historically the effect became fashionable when mohair suiting first took off, prized for that cool, sharp appearance, though it has also suffered whenever cheaper imitations pushed the sheen too far and gave the whole idea a slightly flash reputation. Worn well and in a quality cloth, however, it is a wonderful, confident look with genuine swagger to it.
If the full two-tone suit feels like a lot, the effect works brilliantly on a smaller scale. An iridescent cloth makes a superb pair of trousers worn with a plain coloured jacket, keeping that lovely sharp crease while adding a real point of interest. For anyone drawn to the effect, a self textured two-tone cloth is a rewarding way to bring some colour and character into a wardrobe without straying into anything overdone. Approached with a little confidence, it is one of the most distinctive things you can wear.
Design your own mohair suit with Westwood Hart
If this guide has convinced you that you need some mohair in your tailoring wardrobe, we would love to help you build it. At Westwood Hart we tailor mohair the way it deserves, leaning into that sharp, clean silhouette and choosing cuts that work with the cloth rather than against it. Whether you have your heart set on a midnight blue evening suit, a wool mohair blend for year round wear, or a pair of trousers to test the water, we can make it to your exact measurements and your own specification.
The beauty of going custom is that every decision is yours. You choose the cloth, from a resilient wool mohair blend to a finer kid mohair, along with the colour, the button stance, the lapel, and every detail of the finish. Fancy a three button jacket with a moderate notch lapel and a classic centre vent? Flat front trousers cut for that superbly sharp mohair crease? An iridescent two-tone for something with real character? It is all on the table, made properly and made to last for years rather than seasons.
Designing your own suit is simpler than you might think. Our online configurator lets you build your suit piece by piece and see it take shape, so you can create something that is genuinely your own. If you have been curious about this remarkable cloth, there is no better time to start than now. Take a look through our full range of custom tailoring and begin designing a mohair suit that is made entirely for you.
Frequently asked questions about mohair suits
What is mohair fabric made from?
Mohair is a natural fibre that comes from the angora goat, with much of the finest quality historically sourced from South Africa. It is prized in tailoring because it is strong, resilient, and heat regulating thanks to its hollow structure, and because it holds dye in wonderfully rich, vibrant colours.
Why is mohair almost always blended with wool?
On its own, mohair can be quite stiff and even a little scratchy, which makes it difficult to wear comfortably. Blending it with wool adds drape and softness while keeping mohair's resilience, sheen, and colour depth, so a wool mohair blend suit gives you the best qualities of both fibres in one cloth.
What is kid mohair and is it worth the extra cost?
Kid mohair is the fibre taken from a young goat at around six months old. It is finer, softer, and more drapey than standard mohair, which makes it the most prized grade. For anyone investing in a suit they want to look and feel exceptional, the refinement of kid mohair generally justifies the higher price.
Is a mohair suit suitable for year round wear?
Yes. Mohair's hollow fibre makes it naturally heat regulating, so it stays cool in summer and can hold a little warmth in winter. That versatility, combined with its durability, is a large part of why a wool mohair blend is considered such a practical all year round cloth.
Can I wear a mohair suit to the office?
A more subtle wool mohair blend in a colour like grey works well for business, particularly styled with a simple shirt and classic Oxfords. The more iridescent two-tone cloths, however, fall outside conservative business dress and are better suited to evenings and smarter occasions.
Should mohair trousers be flat fronted or pleated?
Flat fronted is the better choice. Because mohair is stiffer and has less drape than softer cloths, pleats do not sit as cleanly on it. Flat front trousers give a cleaner line, and mohair rewards you with an exceptionally sharp, long lasting crease.
How long does a mohair suit last?
A well made wool mohair blend suit is remarkably durable and can last well over a decade with proper care, even the oldest examples holding up beautifully after many years. This longevity makes it an especially sensible choice for formal wear you only wear occasionally.