For a smart casual interview, aim one step smarter than your normal office clothes. A clean shirt, tailored trousers and understated shoes are safer than trying to look overly relaxed. If you are unsure how formal the company is, dress for the smarter end of smart casual: you can always remove a layer, but you cannot add one you did not bring.
What smart casual means for an interview
Smart casual sits between a suit and tie and what you would wear at the weekend. For an interview it leans firmly towards smart: a collared shirt or fine knit, trousers with a clean line, and leather or minimal shoes. The casual part simply means a tie is not required and a blazer is optional rather than expected.
A useful test is whether each piece would look at home in a meeting with a client. An Oxford shirt, chinos and loafers pass. A hoodie, joggers and running trainers do not, however new they are. For a wider look at the dress code, read our men’s smart casual guide.
Before you choose anything, look for clues. Check the company’s website and social pages for photos of the team, read the interview invitation again, and if it still is not clear, ask the recruiter or whoever booked the interview. It is a normal question and it shows you are taking the day seriously.
The safest interview outfit
Pair a long-sleeve smart shirt with tailored or tapered trousers and loafers or Chelsea boots. This works in almost any office because every piece is recognisably smart without looking like half a suit. Keep the shirt white or light blue, the trousers navy, charcoal or stone, and match your belt to your shoes.
Smart casual interview outfits by workplace
The right outfit depends on where you are interviewing. These six formulas cover most UK workplaces.
1. Corporate office: finance, law, professional services
When a traditionally formal firm says smart casual, treat it as a suit without the tie. Wear a plain men’s shirt in white or pale blue, dark tailored trousers and leather men’s loafers. Add a blazer if you own one, and in cold weather a dark overcoat on top.
2. Tech, start-up or agency
These offices are usually relaxed, so the aim is neat rather than formal. Layer a quarter zip over a shirt, add men’s chinos in navy or stone and finish with clean smart trainers in plain white or black leather.
3. Creative roles: design, media, fashion
Here a little personality helps, as long as the fit is sharp. Try a fine roll neck jumper with pleated trousers and Chelsea boots. Keep the palette to two or three colours so the outfit looks considered rather than busy.
4. Retail, hospitality and customer-facing roles
You will often be judged on how you would look in front of customers. A long sleeve polo shirt tucked into chinos with loafers is tidy, comfortable and easy to move in if you are shown around the shop floor.
5. Practical and site-based roles
For engineering, logistics or trade roles with an office interview, a plain shirt, dark trousers and leather boots are enough. If a site tour is part of the day, choose sturdy shoes and avoid anything you would worry about marking.
6. Video interviews
Dress exactly as you would in person, including the trousers. Solid colours work better on camera than fine stripes or small checks, which can shimmer on screen.
Can you wear a quarter zip?
Yes, especially in colder weather. Layer a quarter zip over an Oxford shirt for a polished but approachable look. Choose a plain colour, keep the zip partly done up so the collar sits neatly, and make sure the shirt underneath is ironed in case the room is warm and you take the jumper off.
Can you wear jeans?
Only if the workplace is clearly relaxed. Choose dark, clean straight-leg jeans with no distressing, and balance them with a shirt and leather shoes rather than a T-shirt and trainers. If you have any doubt, wear trousers instead. Our guide to wearing jeans for smart casual explains where the line sits.
Fit and grooming details
Fit matters more than anything else you put on. An interviewer will not know what your shirt cost, but they will notice a collar that gapes or trousers that pool over your shoes.
- Shirt: shoulder seams should sit on the edge of your shoulders, and you should be able to fasten the top button comfortably even if you leave it open.
- Trousers: they should sit at the waist without a belt holding them up and finish with a slight break or none at all. See how men’s trousers should fit for the details.
- Knitwear: it should skim the body without clinging, and the hem should cover your belt.
- Grooming: have a haircut a few days before rather than the day before, tidy any facial hair, keep nails clean and go easy on fragrance in a small room.
- Finish: iron the shirt, polish or wipe your shoes, and remove loose threads and lint.
Colours that work
Stick to a calm, familiar palette: navy, charcoal, mid-grey, white, light blue, stone and dark brown. These colours sit together easily, so you cannot really get the combination wrong. Navy trousers with a light blue shirt, or grey trousers with a white shirt and a navy jumper, are dependable.
One muted accent is fine, and men’s knitwear is the easiest place to add it: think forest green or burgundy. Avoid bright colours, loud patterns and head-to-toe black, which can look severe in daylight.
Shoes
Shoes are where a smart casual outfit most often goes wrong. Loafers and Chelsea boots are the safest choices because they are smart without being stiff. Plain leather trainers are acceptable for relaxed workplaces, provided they are clean and free of large branding. Wear dark socks that cover your ankle when you sit down, and check your heels and soles for wear.
What to avoid
- Sportswear or gym trainers
- Large logos
- Overly distressed denim
- Anything that fits poorly
- Creased shirts and scuffed shoes
- Brand new shoes you have never walked in
Day-before checklist
- Try the whole outfit on, shoes included, and sit down in it.
- Iron the shirt and hang everything together.
- Clean your shoes and check the laces.
- Check the forecast and put a coat and umbrella by the door if rain is likely.
- Pack a plain bag with copies of your CV, a notebook and a pen.
- Plan your route so you arrive ten minutes early, not flustered.
Browse the smart casual edit for interview-ready combinations.
Frequently asked questions
What should men wear to a smart casual interview?
A collared shirt, tailored trousers or chinos and leather shoes such as loafers or Chelsea boots. Keep colours neutral, make sure everything is ironed and fits well, and add a fine jumper or blazer if the weather or the company calls for it. Aim to look slightly smarter than the people who already work there.
Do I need a tie or blazer for a smart casual interview?
A tie is not expected when the invitation says smart casual, and wearing one can look as though you missed the brief. A blazer is optional. It is a sensible addition for corporate firms and senior roles, while a neat jumper over a shirt is enough for most relaxed offices.
Can I wear trainers to a smart casual interview?
Only in workplaces that are obviously relaxed, and only plain leather trainers in white, black or another neutral colour. They must be clean, with no large logos or sporty soles. Running shoes and gym trainers are never appropriate. If you are in any doubt, loafers or boots are the safer choice.
Can men wear jeans to a smart casual interview in the UK?
Sometimes. Dark, straight-leg jeans with no rips or fading are acceptable at start-ups, agencies and other casual workplaces, worn with a shirt and leather shoes. For corporate, public sector and customer-facing roles, choose trousers or chinos. When you cannot tell which type of office it is, leave the jeans at home.
What colours are best for an interview outfit for men?
Navy, grey, white, light blue and stone are the most reliable. They look professional, suit most skin tones and combine easily, so you can concentrate on the interview rather than your clothes. Add one muted accent if you like, but avoid bright colours and busy patterns that pull attention away from what you are saying.
What should I wear to a smart casual interview in winter?
Build the same outfit and add warm layers you can remove. A quarter zip or roll neck over or instead of a shirt, tailored trousers and Chelsea boots work well. Wear a smart coat for the journey, and take it off before you go in so you are not carrying a damp jacket into the room.

