In the Before Times, said Rebecca Rittenberg, a 28-year-old who works in advertising sales for Google in New York, one of her favorite parts about going to the office was “showing up in a funky, cool professional outfit.”

A smart pair of pants, colorful or patterned blouses, blazers, skirts, dresses, heeled boots and designer sneakers were all part of her wardrobe, which she used to express her personality and keep up with her stylish ad world colleagues.