In the business world, first impressions—and all the ones that follow—play an important role. That’s why you should choose an outfit in the morning that adheres to the dress code of the company you’re visiting. But choosing the right socks is also crucial. In the following sections, you’ll find information and tips on the “business casual” dress code and which men’s socks are the perfect complement.

Where do you wear “business casual”?

“Business casual” is usually the everyday attire for the office, and it’s also acceptable when leaving the office to meet with clients. Depending on the industry, formal dress codes such as “business attire” may still apply. In work environments such as back-office departments or in manufacturing and retail companies, comfort has become increasingly important, and the “business casual” code has become established.

Famous high-tech entrepreneurs like Steve Jobs and Bill Gates have deliberately opted against formal business attire and reflect the views of the majority of the working population. More casual clothing isn’t just more comfortable—it also automatically creates a relaxed, collegial work atmosphere.

At the end of the week, “Casual Friday” brings a bit of a break, and, as the name suggests, attire can be more casual on Fridays. In companies with formal dress codes, this means that employees come to work in a “business casual” look.

If an invitation specifies the dress code as “Come as you are,” this should be taken literally—even if your outfit could be described as “business casual,” “smart casual,” or “business attire.” A slightly more presentable casual look, on the other hand, will stand out negatively from the crowd of business outfits. In this case, it’s worth rummaging through your closet for something a bit more stylish. Also pay attention to your choice of men’s socks.

You can never go wrong with a suit without a tie. This is the simplest choice, but not necessarily the first one you should make if you don’t want to be seen as someone who always wears a suit. There’s more leeway here than with the “business attire” code, and with a little creativity in mixing and matching, you can avoid looking monotonous.

Shirts are practically a must for men, except for elegant sweaters in the winter. Jackets, blazers, and similar outerwear may—but don’t have to—be left at home.

The “business casual” dress code includes many types of pants to choose from. Suit pants or other dress pants, as well as Dockers, slacks, chinos, or cargo pants, are acceptable. Dark jeans are becoming increasingly common, but they generally do not belong in this dress code.

On your feet, wear dark men’s socks that coordinate with the rest of your outfit. Ideally, the color of the pants and shoes should match. Shoes can be classic Oxfords, elegant loafers, or nearly new, understated athletic shoes—with the exception of tennis shoes.

With common sense and a little thought, you can take cues from your coworkers’ attire while also considering your own appearance and the impression you want to make on others.

Still unsure whether your choice is appropriate? When in doubt, it’s better to opt for a more conservative outfit until the prevailing dress code standards become clearer. Being underdressed leaves a worse impression than being dressed a bit more elegantly. Besides, you always have the option of taking off a piece of clothing—even if it’s just a tie—which immediately makes the whole outfit look more relaxed. You can also always check with the HR department or the event organizer.

Selected pieces of a business outfit can be paired with slightly more casual elements: pants with a blouse or a casual top, a dress with dark tights, or a skirt with a cardigan or sweater. For women, there are many categories and styles of clothing, which offers greater flexibility. Shoes should be closed-toe, with no heel or a heel no higher than six centimeters—such as pumps, loafers, or ballet flats.