Isla Fisher isn't afraid to show off her post-baby bod! The actress donned a sexy swimsuit in the French Riviera this week – see the photos!Looking good, Isla!The mother-of-three debuted her impressive post-baby body while on vacation in the French Riviera, donning a slimming turquoise one piece on a boating excursion with hubby Sacha Baron Cohen.There's no doubt about it, Fisher, who gave birth to son Montgomery in March, is smoking hot!Fisher and Cohen also have daughters, Elula, 5, and Olive, 7.How on earth does she stay in such great shape?According to the Wedding Crashers star, it's all thanks to yoga."Yoga's great," the actress shared in 2013. "It helps with posture, muscles, cardio. I do vinyasa, with lots of inversions – headstands and handstands."