Do men notice what women wear at work?

I am interested in work primarily but also outside of work.

For those who work in professional office environments, business casual to business formal: do you notice your female coworkers' clothes, and overall fashion sense?

ETA: I obviously wasn't very clear. I am specifically interested in if men notice clothing choices from a fashion perspective.

Are you aware of trends in women's fashion and do you notice if women are on trend, do you notice if women repeat the same outfits, do you notice if someone is stylish vs frumpy.

Women definitely notice male fashion faux pas and have men's fashion pet peeves (for the love of God your white undershirt shouldn't show). Do men notice the same?