sunglasses purse hand bag Hilary Duff chanel baby weight pilates

She sure is one dedicated gym rat!

Hilary Duff was snapped leaving Pilates in Studio City yesterday, and she's still busting her booty to burn off the remaining baby weight that she gained during her pregnancy with son Luca.

Of course, she's not depriving herself of anything either ... after getting her hair done the other day she tweeted, "Girls @nineZeroOne are y'all trying to kill me! That was the biggest box of cookies I've ever seen! They are De-luscious ;) thank you xx." Mmmm, cookies...