I have two pairs going right now. Pearl Izumi X-Alp Seek VI, and Specialized Cadet. Both are lace-up style with subtle non-flashy design or wild colors. The Cadets are black/gray and came with bright fluorescent yellow laces which I swapped out for black on day one. The Pearls are a simple black/gray with a plain mesh design pattern. Either pair can be worn casually without being uncomfortable or inappropriate. I paid about $75 for each pair.
-Kedosto