Business casual doesn’t just mean following a strict dress code and wearing dull gray outfits. Button-downs are another great pick for business casual outfits. She wears a lot of bright colors and flowy tops, proving that business casual does not have to be boring and can be feminine. Lastly, Andy Sachs, the protagonist of “The Devil Wears Prada,” wears some of the most iconic business casual outfits … post makeover. Now that you have a vision for your professional wardrobe, remember to dress business professional for your interviews.