I bought three of these, one in each color and I love them for working out and even just wearing around normally. Very good quality. I normally wear small, and found that the small was fine in the maternity sizing also. There is such a dearth of good maternity workout stuff. I highly recommend these.

This top is so nice! The built in bra makes the top section a little thick if you're working out hard (but hopefully not too hard since you're probably pregnant). I'm 6 months pregnant and wear this to the gym and everyday around town. I wanted to wear it earlier, but it's made to fit when you're belly is getting obviously bigger. It is VERY comfortable and I have gotten a lot of compliments on the style. Its really hard to find cute maternity activewear, but of course Prana gets it right on their first try.