Business Casual Attire For Men: 20 Rules To Ace Your Look

Business casual might sound simple, but it can leave you staring at your wardrobe, wondering if you’ve nailed the right balance between professional and relaxed. Is your button-up too formal? Are those loafers too laid-back? The line between looking sharp and being comfortable can feel as thin as a thread.

This guide will take you through the essential rules of mastering business casual attire. Whether you're navigating your first day at a new job or preparing for an important meeting, these 18 rules will ensure you look both polished and approachable. From picking the right fabrics to layering smartly, you’ll learn how to ace business casual with style and confidence, making sure every choice reflects your personal taste while maintaining professionalism.

Let’s dive into the world of business casual and find that sweet spot where style meets comfort, helping you dress with ease no matter the occasion.

What Exactly is Business Casual?

Business casual isn’t just a dress code; it’s a balance between looking professional without being too formal. At its core, business casual allows you to present yourself in a polished, well-groomed manner without the need for a full suit and tie. Picture a well-fitted button-up shirt, paired with chinos or dress slacks, and loafers instead of stiff dress shoes. It’s the sweet spot of grey where comfort meets professionalism.

Business casual means opting for clean, wrinkle-free outfits that reflect your personal style while maintaining an appropriate level of formality. The key is versatility: whether it’s a neatly pressed blazer, a tucked-in polo, or a sweater over a crisp shirt, you have the freedom to mix and match pieces to create a look that is both comfortable and polished. Business casual doesn’t have to be bland; it’s all about subtle sophistication.

History of Business Casual

Business casual has evolved alongside modern workplace culture. It began in the 1960s when Silicon Valley tech companies embraced a more relaxed, innovative atmosphere, ditching stiff suits for something fresher. This shift led to "Casual Fridays" allowing employees to swap formalwear for more comfortable attire at week’s end.

By the 1990s, business casual spread beyond tech into corporate offices, redefining professional dress. What started as khakis and polos has since expanded into a refined blend of style and comfort. Today, business casual remains a workplace staple, balancing professionalism with ease.

The 2025 Modern Man's Business Casual

For the modern man, business casual is no longer just a dress code—it’s a statement of balance, individuality, and effortless style. The 2025 man navigates this look with finesse, blending classic elements with contemporary twists to create a wardrobe that speaks to professionalism without sacrificing comfort or personal expression.

Shop this look.

Business casual for today’s man means more than just slacks and button-ups. It’s about curating outfits that align with your lifestyle—whether you’re in a creative work environment, leading a client meeting, or working remotely from your favorite café. The modern man appreciates quality fabrics, smart layering, and pieces that transition seamlessly from the office to after-work social settings.

Gone are the days of rigid dress codes; business casual now embraces versatility. A blazer layered over a turtleneck, tailored chinos paired with minimalist sneakers, or a well-fitted polo with refined accessories—these are the staples of the modern business casual wardrobe. It’s an approach to dressing that prioritizes confidence, function, and style in equal measure.

Rule #1: Understand Your Office Culture

Mastering business casual starts with understanding your workplace environment. Just as a car’s emblem defines its brand, every office has an unspoken dress code that sets the tone. Some offices favor a polished look with chinos and button-ups, while others allow jeans and polos for a more relaxed feel.

Observe what your colleagues wear—do blazers dominate, or is a crisp shirt enough? Recognizing these nuances helps you strike the right balance between too formal and too casual. Like a signature brand mark, knowing your office culture lets you fit in while still expressing your personal style.

Rule #2: Start with a Button-Up

A crisp, well-fitted button-up shirt is the cornerstone of any business casual wardrobe. It’s versatile, timeless, and effortlessly professional.

When choosing a button-up, stick to solid colors like white, light blue, or subtle patterns like checks or stripes. These shades not only keep your look polished but also allow for easy pairing with blazers, chinos, or sweaters.

 

A well-fitted button-up does more than just complete your outfit; it sets the tone for the entire look. Whether tucked in or left untucked, the key is ensuring the fit is perfect—neither too tight nor too loose. A shirt that hugs your shoulders and tapers at the waist gives you a sharp silhouette, enhancing your overall appearance.

When dressing for business casual, the flexibility of a button-up is unmatched. Dress it up with a blazer and leather shoes for a more formal meeting, or dress it down with chinos and loafers for a more relaxed office environment. Think of it as the foundation upon which you can build any business casual look—timeless, comfortable, and always appropriate.

Rule #3: Polos Can Work, But Be Cautious

Polos can be a great business casual option, particularly in warmer months or in more relaxed work environments, but there are a few rules to follow to ensure they fit the part. 

First and foremost, the fit is everything. A polo that’s too baggy or too tight can quickly throw off your look. Opt for a well-fitted, structured polo that hugs your frame without being restrictive.

Stick to neutral tones like navy, grey, or black to keep things professional. Bright colors or bold patterns can make a polo look too casual for a business setting. Avoid large logos or flashy designs; simplicity is key. A clean, streamlined polo paired with chinos or dress slacks can strike the right balance between casual and professional.

While polos offer a laid-back vibe, they still need to be worn with care in business casual environments. They work well on days when your office leans more casual, but they should always be paired with polished trousers and proper footwear—think loafers or dress shoes, not sneakers.

Choose polos made from premium double knit jersey fabrics that offer both comfort and style. 

Rule #4: Henleys and Tees Are Too Casual

Henleys and t-shirts, while great for casual wear, usually don’t fit into business casual. Even in relaxed office settings, they lack the structure needed for a polished look. A Henley’s buttoned placket may seem refined, but button-ups or well-fitted polos are far better choices.

T-shirts, no matter the quality, simply don’t carry the formality required. If your office is very relaxed, a blazer over a t-shirt might work, but it’s safer to opt for more structured tops.

Business casual is all about balancing comfort with professionalism—Henleys and tees lean too far toward casual. Stick to button-ups or polos to ensure you look polished and workplace-ready.

Rule #5: Pick the Right Pants

When it comes to business casual, your choice of pants is critical. Chinos or dress slacks are the backbone of any business casual outfit, offering versatility and comfort. 

Stick to neutral tones like navy, beige, or grey, which can easily be paired with a variety of tops—whether it’s a crisp button-up, a polo, or a sweater.

 

The key to pulling off chinos or slacks is in the fit. A well-fitted pair of trousers should sit comfortably at your waist without being too tight or too loose. Slim or tailored fits are ideal for a sharp, modern appearance, while straight-leg options offer a more classic look. The fabric also matters—opt for high-quality cotton or wool blends that are both breathable and durable, ensuring comfort throughout your workday.

Chinos and dress slacks provide the foundation for a balanced look that transitions seamlessly from meetings to after-work events. Pair them with loafers or leather dress shoes for a polished finish that reflects both professionalism and style.

Rule #6: Add a Blazer

If you’re looking to elevate your business casual look, a well-fitted blazer is your go-to option. The power of a blazer lies in its ability to instantly transform a simple outfit into something polished and professional. Whether you’re wearing a button-up shirt or even a turtleneck, adding a blazer creates a structured silhouette that exudes confidence and sophistication.

Blazers are incredibly versatile. You can layer one over a shirt and chinos for a more formal meeting or throw it on over a turtleneck and dress slacks for a sleek, modern take on business casual. The key is in the fit—a blazer should contour to your shoulders and taper slightly at the waist, giving you a streamlined appearance.

 

Opt for neutral tones like navy, grey, or charcoal to maximize versatility, allowing you to mix and match with other items in your wardrobe. A well-fitted blazer adds a layer of refinement to your business casual attire, ensuring you’re ready for any professional occasion.

Rule #7: Say No to Shorts

Shorts, no matter how tailored, are generally too casual for business casual settings. They can undermine the professional tone expected in most workplaces. Instead, opt for chinos or dress slacks, which offer a polished look while maintaining comfort.  

If the weather is warm, lightweight fabrics like linen or cotton will keep you cool without sacrificing professionalism. While some creative workplaces may allow for more relaxed attire, tailored trousers remain the safest and most versatile choice. Save shorts for weekends or off-duty outings, and keep your business casual wardrobe refined and office-appropriate.

Rule #8: Consider Richer Fabrics

Elevate your business casual wardrobe by incorporating richer, more diverse fabrics that not only enhance your look but also ensure comfort throughout the year. The fabric you choose can make all the difference, especially when transitioning between seasons.

Linen

Our most popular summer linen suits.

Lightweight, breathable, and ideal for summer. Linen shirts and trousers keep you cool while maintaining a professional look. Its subtle texture adds a relaxed yet refined touch to business casual outfits.

Corduroy

Click to personalize your suit in this fabric.

Soft and textured with signature ridges, corduroy adds warmth and style. Deep, rich tones like brown, navy, or burgundy work best for a polished fall and winter look.

Wool

Our most loved business casual wool suits.

Insulating yet structured, wool blazers and dress slacks offer warmth without compromising professionalism. Dark hues ensure a sleek, sophisticated appearance.

By choosing seasonally appropriate fabrics, you can keep your business casual wardrobe comfortable and effortlessly stylish year-round.

Rule #9: Big and Tall Guide for Business Casual

For big and tall men, mastering business casual is all about fit. Oversized clothing can look sloppy, while overly tight pieces feel restrictive. Opt for tailored chinos, dress slacks, and structured button-ups in slimming neutral tones like navy, black, or grey. A well-fitted blazer enhances your silhouette, adding polish without bulk.

Custom clothing is a game-changer, ensuring a perfect fit that flatters your frame. Hangrr offer tailored options designed for comfort and style, making it easier to achieve a sharp, professional look with confidence.

Rule #10: Jeans in Business Casual? Sometimes

Jeans can work in business casual settings if styled correctly. Opt for dark, well-fitted jeans in deep indigo or black, avoiding distressing, rips, or fading.

Pair them with a crisp button-up or fitted polo for a polished look. A tailored blazer or smart sweater can further elevate the outfit. Finish with leather loafers, Chelsea boots, or dress shoes to maintain professionalism.

If jeans are allowed at your workplace, balance them with formal elements to keep your look sharp and office-appropriate.

Rule #11: Khakis: A Business Casual Staple

Khakis are a timeless staple in the business casual wardrobe, offering the perfect blend of laid-back comfort and polished professionalism. Their versatility allows them to be dressed up or down, making them a go-to choice for a variety of office settings.

To nail the business casual look with khakis, opt for slim or tailored fits that provide structure without being too tight. Neutral tones like beige, tan, and olive are ideal, as they pair easily with a wide range of shirts, from button-ups to polos. Khakis can be dressed up with a blazer or sweater for a more formal meeting, or worn with a simple polo for a casual day at the office.

Their lightweight, breathable fabric makes khakis an excellent option for year-round wear, keeping you comfortable while maintaining a sharp, polished appearance.

Rule #12: Layer Smartly

Layering is key to a polished business casual look, especially as seasons change. A well-fitted sweater or cardigan over a button-up adds warmth and sophistication without bulk. For colder months, try a turtleneck under a blazer for a sleek, modern touch.

The secret to great layering is balance—each piece should complement the others in fit, texture, and color. Thoughtful layering not only enhances your style but also keeps you comfortable throughout the day, ensuring you’re always dressed appropriately for any setting.

Rule #13: Go Creative with Smart Combinations

Don’t be afraid to experiment with smart combinations to keep your business casual look fresh and modern. Pairing a sweater with chinos, or layering a blazer over a polo, allows you to create interesting but professional outfits that reflect your personal style. The key is to play with textures and fabrics like wool, cotton, and linen, combining them in ways that suit the season and setting. For example, a lightweight wool sweater over a button-up shirt works perfectly in colder months, while a cotton blazer paired with a crisp polo is great for summer.

These smart combinations allow you to add variety to your wardrobe without straying from the core elements of business casual. By mixing different pieces, you’ll keep your look interesting, stylish, and appropriate for any office environment.

Rule #14: Turtlenecks Are a Stylish Choice

Turtlenecks have become a stylish staple in business casual wardrobes, offering a refined yet modern alternative to traditional shirts. Opt for slim-fit designs in neutral tones like black, navy, or grey, pairing them with chinos or dress slacks for a polished look.

For added sophistication, layer a turtleneck under a blazer or structured jacket, creating a sleek silhouette perfect for cooler months. This versatile piece transitions effortlessly between casual and professional settings, ensuring you stay both stylish and office-appropriate.

Rule #15: Accessorize Smart

Smart accessories can take your business casual look to the next level, adding a touch of personality and refinement without overpowering your outfit. The key to accessorizing in business casual is to keep things simple, classic, and well-coordinated.

A classic wristwatch is one of the best accessories you can incorporate into your business casual attire. Opt for minimalist designs with leather or metal straps in neutral tones like black, brown, or silver. Avoid overly large or flashy watches, as these can detract from the professionalism of your outfit.

For those looking to add a bit more formality, a subtle tie or pocket square can be great additions. Stick to solid colors or small, discreet patterns that enhance your outfit without stealing the show. Remember, accessories should accentuate your business casual look, not dominate it.

Belts Are a Must

A well-chosen belt ties your business casual look together, adding both function and refinement. Opt for high-quality leather in black or brown, ensuring it matches your shoes for a cohesive appearance.

Minimalist designs with simple buckles work best, keeping your outfit polished without unnecessary distractions. A sleek belt also defines your silhouette, complementing tailored trousers, chinos, and layered outfits.

By keeping it classic and understated, your belt subtly enhances your overall style, ensuring a sharp and well-put-together business casual look.

Choose the Right Shoes

Your footwear plays a crucial role in defining your business casual look. Leather loafers, Oxfords, and Chelsea boots offer the perfect blend of style and professionalism, pairing seamlessly with chinos, dress slacks, or blazers. 

While some workplaces allow sneakers, opt for sleek, minimalist designs in neutral shades to maintain a polished appearance. Sandals and overly casual shoes should be avoided unless explicitly permitted. 

Well-maintained leather shoes in classic tones like brown or black not only enhance your outfit but also leave a lasting impression, ensuring you always look refined and put together.

Rule #16: Go Custom Fit

One of the best ways to upgrade your business casual wardrobe is with custom-fit clothing. A tailored piece not only enhances your look but also boosts comfort by perfectly fitting your unique proportions.

Off-the-rack clothing often requires compromises—too tight here, too loose there—but custom pieces eliminate these issues, offering a sharp, effortless fit. Whether it’s a button-up shirt, chinos, or a blazer, a custom fit ensures you look polished while feeling at ease.

At Hangrr, our AI-driven custom fits take the guesswork out of tailoring. With a range of fabrics and designs, you can create pieces that match your personal style. Choosing custom-fit means investing in clothing that looks better, feels better, and lasts longer.

 

Rule #17: Add a Personal Touch

Business casual isn’t one-size-fits-all, it’s an opportunity to showcase your personal style while maintaining professionalism. A well-fitted pair of chinos or a tailored shirt creates a sharp foundation, while layering with a blazer or textured sweater adds depth and sophistication.

Small details, like a patterned pocket square, a minimalist watch, or a pop of color, can subtly elevate your look. At Hangrr, customization takes it a step further, letting you choose fabrics, cuts, and fits to build a business casual wardrobe that’s uniquely yours.

Rule #18: Stay Well Groomed

Grooming is just as essential as your outfit in mastering the business casual look. A sharp suit loses its impact if paired with an unkempt appearance. Staying well-groomed shows attention to detail and enhances professionalism.

Regular haircuts and beard trims keep your style neat and intentional. Whether clean-shaven or bearded, upkeep is key. Nails should always be clean and trimmed—small details like these make a big difference. A simple skincare routine ensures fresh, hydrated skin, especially for face-to-face interactions.

Finally, a subtle cologne adds a refined touch but should never be overpowering. When your grooming complements your outfit, you present a polished and confident image.

Where Can I Buy Business Casual Clothes for Men?

Your business casual wardrobe should strike the right balance between style, quality, and comfort. Brands like Banana Republic and J.Crew offer a mix of classic and modern pieces, while Uniqlo provides budget-friendly, minimalist designs in durable fabrics.

For a more personalized touch, Hangrr delivers custom-made business casual wear with precision fits and premium fabrics. Powered by AI-driven technology, Hangrr ensures every piece is tailored to your exact measurements. Whether it’s a blazer, shirt, or trousers, you get unparalleled customization with a focus on sustainability.

With these options, building a refined and versatile business casual wardrobe becomes effortless. Whether it’s your first day at the office or an important meeting, Hangrr helps you dress with confidence and ease.

What Are Some Business Casual Clothes for Men and How to Dress for the Look?

Business casual for men blends comfort with professionalism. A well-fitted button-up shirt in solid colors or subtle patterns is a staple. Pair it with chinos or dress slacks in neutral tones like navy, beige, or grey for a polished yet relaxed look.

Blazers and sport coats can elevate your outfit for formal occasions, while sweaters layered over a dress shirt add warmth and style in cooler months. Complete the look with leather shoes—loafers, Oxfords, or Chelsea boots—steering clear of sneakers or sandals unless office policy allows.

Keep your clothes clean, wrinkle-free, and well-fitted. Mixing and matching these essentials ensures flexibility without compromising professionalism.