Dress pants are the workhorses of your office wardrobe. From formal pantsuits to casual bottoms, you'll be seeing these things almost as often as the nearby Starbucks barista. Of all the pants in your wardrobe, this the one pair which you can't afford to go low rider -- at the office, anywhere between the bust and the knees is a skin-free zone.
You'll be logging a lot of miles in your work pants, so try to pick up something that's both tough and tasteful. A durable wool blend should work, for example. Also, do yourself a favor and skip the pleats -- you'll save countless hours over the ironing board.