Business Casual

What it means

Business casual is the dominant dress code for office environments that have relaxed their formal standards without going fully casual. The definition is notoriously inconsistent, what counts as business casual varies significantly between a law firm, a marketing agency, and a tech company. But the underlying principle is stable: professional, polished, and clearly work-appropriate clothing that doesn’t require a suit or tie, but also doesn’t include jeans, trainers, or clothes designed primarily for leisure. The “business” in business casual still matters. The clothing should communicate that you are a professional in a professional environment, even if the specific garments are less formal.

When you’ll see it

Business casual is the stated or implied standard for:

Most modern office environments across industries
Remote-work video calls where professional appearance matters
Business conferences and industry events
Client visits at companies with a relaxed culture
Creative and tech industry offices
Casual Fridays at otherwise business professional companies

The dress code has been expanding downward for decades. What counted as business casual in 2000 is often considered business professional today. Reading your specific workplace’s interpretation is more important than any universal definition.

What to wear

Men

The core is neat separates that read as professional without being a full suit:

Trousers: tailored chinos, dress trousers, or smart flat-front trousers in neutral tones (navy, grey, tan, olive, khaki). No cargo pockets; no casual cotton.
Shirt: a button-down dress shirt or a fine-weave polo. Tucked in for more conservative environments; tucked or untucked depending on culture. Oxford cloth button-downs are a business casual staple.
Blazer: optional in most business casual environments but often improves the overall impression significantly. A navy blazer is the most versatile piece in the business casual wardrobe.
Shoes: loafers, derbies, or clean leather sneakers (in some cultures). Brown leather shoes work well with navy and grey. Clean, unscuffed.
No tie required: though a knit tie or casual silk tie is acceptable and adds an element of deliberateness.

Women

Women’s business casual has more range, which can make it both easier and harder:

Trousers or skirt: tailored trousers in any professional colour or pattern. A skirt at or below the knee in a professional fabric.
Blouse or shirt: a wide range works: a silk blouse, a structured button-down, a fine-knit sweater, a tailored sleeveless top with a blazer.
Dress: a shift dress, wrap dress, or midi dress in a professional-weight fabric. The casualness of the fabric and print determines whether a particular dress crosses into too casual.
Blazer or structured jacket: adds formality and polish when needed.
Shoes: loafers, block heels, pointed flats, dressy sandals. Clean leather or quality synthetic. Running shoes and flip-flops are wrong.

What not to wear

Men: Jeans (unless your specific workplace culture explicitly includes them). Athletic wear, including polo shirts designed for sport. T-shirts. Trainers or athletic shoes in most environments. Shorts, even in summer.

Women: Casual sundresses in cotton or linen. Athleisure, including yoga trousers and leggings. T-shirts. Flip-flops or casual sandals. Overly casual denim (though some workplaces permit neat dark jeans, read your environment).

The company-culture variable

Business casual is the dress code where company culture overrides universal rules most significantly. In a traditional professional services firm, business casual means pressed chinos, a button-down, and loafers. In a startup, business casual can include dark jeans and a structured sweater. The only reliable approach is to observe what your workplace’s most respected people actually wear, not its most casual people, and calibrate from there.

Jeans: the eternal question

Whether jeans belong in business casual depends entirely on your specific environment. As a general rule: dark, straight-leg jeans in a clean wash, worn with a blazer and leather shoes, sit at the very edge of business casual in progressive workplaces. Distressed, faded, or casual-cut jeans do not.

How Andy helps

Business casual is the dress code where most people’s wardrobe most often falls short or overstocks in the wrong areas. Andy helps you see what you actually have that works for your specific environment, identify the gaps, and get dressed for work without the daily uncertainty of whether an outfit is appropriate.