Some example of the types of attire that would be inappropriate for our business environment include: tank, halter, tube, midriff, and spaghetti-strap tops or camisoles, strapless dresses; revealing attire; T-shirts, spandex or other form fitting pants (i.e. stretch pants or leggings); skorts or shorts, blue denim ..
Appearance matters. It's not everything, and it certainly isn't as important as our performance at work, but people do judge us based on how we look. Don't become known as the guy who looks like he rolled out of the hamper or the woman whose skirts are too short. Get noticed at work for your performance rather than your appearance.