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Men’s Business Casual Dress Code: What Does it Involve?

09 Sep 2025

Dressing for the office used to be a doddle. You’d throw on a shirt and tie to go with your trousers, and the job was done. No fuss, no frolics, and not much that could go wrong.

Then business attire changed, attitudes relaxed, dress-down Fridays arrived and with it came an element of confusion. The business casual dress code was born – but what exactly does this mean?

If you’re unsure what a men’s business casual dress code is, we’ve created a top-to-tail guide to help you look professional, stylish and office-ready at all times.

What is a men’s business casual dress code?

Business casual dress code is a mixture of traditional work attire, like a smart men’s suit combined with fresh casual elements like a classic polo shirt or stylish knitwear.

It empowers workers to take their appearance to a new level by injecting personality and character into everyday office wear.

The men’s business casual dress code has been around for some time – yet even today, it can be confusing. It blurs the lines between what is and isn’t appropriate, what outfits fall into this category, and which ones do not.

For instance, a business casual dress should never be confused with a smart-casual look that is even more relaxed. Business casual has a higher degree of formality, without being too restrictive or stuffy. That means:

·         Something less formal than a suit, tie and shoes

·         Something more professional than jeans, a t-shirt and trainers.

The secret to perfecting the men’s business casual dress code is to strike a balance between the professionalism of formal attire with the comfort, versatility and relaxed styling of casual wear to create a clean, put-together look.

How to Perfect the Business Casual Dress Code for Men

To master the business casual dress code, focus on every item from the head down. Each element contributes to your overall look as you strive for that magical middle ground between professionalism and informality.

Let’s break it down further.

1. Business casual jackets and blazers

"Smiling man wearing a burgundy textured blazer over a black turtleneck, looking to the side and holding his collar with one hand.

Once upon a time, men’s business wear meant a dark, dependable suit jacket like that from a classic navy suit worn over a long-sleeved dress shirt and complementary necktie.

Nowadays, workers are abandoning the formal business look for something more casual. This involves:

·         Choose lighter-coloured suits : Darker suits tend to be more formal and conform to traditional business wear. Lighter options like beige suits, blue suits and summer suits are more on the casual mark.

·         Go for blazers: Men’s blazers are a great alternative to a suit. Go for paler colours like light browns and greens, or choose check patterns to break up your look.

2. Business casual tops

After choosing your jacket or blazer, you’ll need to consider what top to wear underneath to develop your business casual look. Some key factors include:

·         Select the right shirt or top: Choose from a variety of options, including a short-sleeved shirt, button-down collar shirt, smart polo shirt or even a Y-neck t-shirt for a relaxed vibe.

·         Ditch the necktie: Not required for a business casual dress code.

·         Unbutton your shirt: Leave the top button open for a relaxed look to convey an air of casualness.

·         Opt for a crew neck jumper: A simple crew neck jumper underneath a jacket or blazer is a popular business casual look.

·         Forego the jacket or blazer: You can even get away with leaving the jacket or blazer at home for a truly professional yet laid-back appearance.

Remember, when it comes to a men’s business casual dress code, never be afraid to showcase your own personal style. That could mean layering your tops with a coloured V-neck jumper over a plain crew neck t-shirt. Similarly, a shirt beneath a round neck jumper pairs perfectly with a suit jacket or blazer.

Layering your clothing gives depth to your outfit and helps create the ideal business casual look.

3. Business casual bottoms

 

Once you’ve sorted your jacket and top, your focus should shift to finding the right business casual bottoms.

Traditional business attire would involve matching your bottoms to your suit jacket to create a joined-up look. But there’s no requirement with a business casual dress code.

Instead, a variety of trouser options come into play, such as classic chinos or comfort trousers made from generous, lightweight materials.

While it’s important to consider the profession and industry you’re dressing for, the key element is to find the right blend of top and bottoms. In hot, summer conditions, you could even get away with wearing a pair of traditional tailored shorts as long as your employers approve. Other options include:

·         Denim jeans: The most casual trouser option. Denim jeans are perfectly okay for a business casual dress code. But, we recommend a classic straight-leg or slim-fit cut in a dark wash while avoiding baggy, skinny or distressed-look jeans.

Essentially, avoid trouser styles that are too casual for the office. So save those ripped jeans for the weekend party and keep them away from the workplace.

4. Business casual outerwear

Another important element of a business casual dress code is outerwear. It should complement your look and keep you warm during the colder months on your rainy stroll to work.

Some staples of business casual outwear include the single or double-breasted overcoat, duffle coat or traditional trench coat. And the bonus of this type of styling is that there’s always room to experiment as long as you stay within the business casual boundaries.

5. Business casual footwear

Paying close attention to your business casual footwear will help you perfect your look. After all, the right shoes have a powerful impact, no matter what you’re wearing.

You won’t go far wrong with a classic pair of brogues that come in a range of colours to match your attire. Similarly, a pair of Derbies provide a dash of contemporary flair, while monk strap shoes and Chelsea boots never go out of style and go with most business outfits.

Meanwhile, men’s loafers with their variety of colours and designs are a great match for chinos or jeans. These days, men’s smart trainers have also worked their way into business casual styling – ensure you opt for a minimalist design that won’t dress your outfit down.

6. Business casual accessories

A business casual dress code offers ample opportunity to experiment with men’s accessories. From neckties to pocket squares, here’s what you need to know:

·         Waistcoats: Optional, but generally best for formal events.

·         Neckties: Optional. Consider non-traditional patterns, fabrics and colours.

·         Pocket squares: Optional, again look for non-traditional designs.

·         Cufflinks: Not required as too formal for business casual.

·         Socks: Be bold, be bright, be funky.

·         Belts: Adds a touch of flair.

·         Scarf: Perfect for added styling and warmth.

Remember, business casual requires a balance between professionalism and individual styling. Selecting the right accessories will elevate your look and showcase your creativity.

Men’s Business Casual Dress Code: What You Shouldn’t Wear

To recap, there are certain items you should always avoid when creating a business casual outfit. For example, jeans, trainers, and shorts are generally considered unsuitable; however, it ultimately depends on your workplace’s specific guidelines.

In start-ups or creative industries, the dress code is often far more relaxed compared to the more formal standards of, say, finance or the legal sector. It’s worth checking the expectations before heading into the office to avoid any awkward surprises. And as for the tie, leave it at home if you can.

Perfect the Business Casual Dress Code and Create Your Ideal Office Look

Browse our huge collection of men’s suits including stylish two-piece and three-piece options. Or check out our range of men’s clothing options and take a more relaxed approach to your business casual outfit. Alternatively, contact us today.

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