There is a moment in September when the wardrobe that has worked all summer stops working. The linen dress is suddenly not enough. The blazer at the back of the cupboard is looking a little tired. Mornings are cold, the office is not, and by six o'clock it's beginning to get dark.
Dressing for work in autumn is as much a question of acclimatisation as of style. This guide is about giving you one wardrobe to cover three or four temperatures, and to take you seamlessly from the platform, to a 3pm meeting, to after-work drinks.
Everything in this guide sits in our Modern Workwear range.
Making autumn work dressing easy
Stop dressing for the weather and start dressing for your day.
A typical autumn workday takes you through a cold commute, an office heated to 21°C and a stroll at lunch. No single garment covers that range. Instead, curate layers, each of which looks finished on its own.
If your middle layer only looks right with the coat on, you have not built an outfit. Ideal layering looks something like this:
- Layer one sits against the skin and does the work in a warm office
- Layer two adds structure and warmth, and is what your colleagues actually see
- Layer three handles the cold outdoors
Layer one: the base
In summer this layer is the whole outfit. From September it becomes the foundation, which changes what you want from it.
Fine-gauge knits are the most useful here. A ribbed polo or close-fitting knitted top sits flat under a blazer, and reads as considered rather than casual. Jersey works the same way — a wrap top or a tie-neck blouse in a good weight gives you softness at the neckline, which stops a layered outfit looking severe.
Want to elevate your look further?
- A flat shoulder seam. Bulky seams show through tailoring and ruin the line.
- A neckline you can see. Make sure layer two leaves room to show neckline detailing.
A lyocell or lyocell-blend shirt drapes rather than stands away from the body, which makes it far easier to layer. Our guide to lyocell sets out why it behaves differently to cotton.
Layer two: where autumn workwear is won or lost
This layer does the most for how professional your outfit comes across.
Tailoring. A blazer in wool or a wool blend is the highest-return piece for autumn work dressing. Wool holds a shoulder line in damp weather, insulates without weighing down, and does not crease across the back when you sit.
Knitwear with structure. A merino cardigan or a quarter-zip jumper is warmer than a blazer and can be equally professional. Think fine Italian wool knits with a clean rib rather than chunky brushed yarns. Both are lovely; only one belongs in a client meeting.
The waistcoat option. If your office runs warm, a tailored waistcoat over a fine knit gives you the structure of a blazer with more room to breathe.
Layer three: let's talk coats
The best work coat is the one that fits over your blazer. A coat cut close to the body will not accommodate a middle layer, so leave room for tailoring underneath.
To test, try it on over the thickest thing you own for work. Check you can raise your arms, that the sleeve still covers your wrist, and that it closes without straining across the back.
Beyond fit, wool is what buys you warmth without bulk, and a length that covers the hem of your skirt or the widest point of your trouser will always look more resolved than one that cuts across it.
The autumn work trouser
Summer trousers are too light to hang over tights or boots, and not thick enough to be warm. For autumn, two fabrics become your best friend.
Wool and wool-blend flannel give you a soft-surfaced trouser with real weight. It drapes from the hip in a wide leg, takes a press, and is genuinely warm. We recommend the Gwynnie, the trouser for the coldest months and the most formal days.
Ponte is the practical choice for everything else. It behaves like a woven cloth but moves like a knit, so it holds a smart flat front all day without creasing across the lap after hours at a desk. It is excellent from autumn through spring. If you commute, sit for long stretches, or travel for work, this is the one to own. We go into detail in our guide to ponte fabric.
On colour, navy is the most useful work trouser there is. It is softer than black in daylight, photographs better on video calls, and combines with brown and camel in a way black does not.
Work dresses and skirts do not stop in October
There is a persistent idea that dresses are a summer thing at work. They certainly have a place in autumn, because a dress is a complete outfit in one decision - extremely helpful when getting ready in dark, cold mornings.
What changes is the fabric and what goes underneath.
- A knee-length ponte dress is the most reliable option. The fabric's structure means it holds its shape all day, and it takes a blazer over the top without pulling.
- A midi skirt in a wool mix works with opaque tights and a boot, and with a fine knit tucked in it is the least effortful smart outfit there is.
- Tights the difference between a winter dress outfit working and not.
- Boots finish it. An ankle boot with a modest heel works with a midi length; a knee boot works better under a shorter hem.
What smart casual means once it gets cold
Smart casual is the vaguest dress code in British working life.
In autumn and winter, smart casual usually means one structured piece and everything else relaxed. A blazer over jeans and a knit is smart casual. The same jeans and knit with a padded coat is not, in most offices.
Useful tips:
- Denim can work when darker and full length, and worn with a structured top half
- Knitwear can carry the whole outfit if the gauge is fine and the fit is deliberate
- If in doubt, add tailoring. A blazer or waistcoat resolves almost any smart casual doubt
Buying for autumn without over-buying
The pieces described here are ones you will wear two or more times a week for four months, which means investing well is important.
That means paying attention to fibre — wool, merino, ponte, lyocell. Natural and cellulosic fibres in a decent weight are what let a garment survive a season of heavy rotation without pilling, bagging or going shapeless at the elbow.
Everything at Baukjen is designed in London and mostly made in Europe, and we are a certified B Corp. Our garments are designed to last you longer and still look good next autumn.
You can see the full Baukjen autumn range in Modern Workwear and New In, or read our fabrics guide if you want to understand why we use the materials we do.
Ready to build the autumn rotation? Shop Modern Workwear, Tailoring and New In.