It's not like we didn't expect Rachel Bilson to maintain the best maternity style out there. After all, we've never seen her in a look we haven't liked, and she's become a total icon because of her natural ability to break fashion rules. Plus, she's got the whole relaxed, bohemian flair going for her. And when it comes to flattering a growing baby bump, those are the vibes any mom-to-be wants to channel. Scroll down to see how Rachel keeps things polished yet totally comfortable.