For InStyle’s March Issue, Mad Men star Jessica Paré, who plays Don’s secretary-turned-wife Megan Draper, traded her ‘60s era looks for more modern styles, but with AMC’s hit show returning this Sunday, we had to know which of her many glamorous looks from season 5 were her favorites."Every once in a while you'll find something that's really perfect for a scene but it doesn't fit quite right," Paré says in the video above. "This dress had been through so many alterations over the years, that you just can't quite get it where you want it to be. It was one of my favorites, but it was probably of the more annoying ones to wear." To see which dress she's referring to, as well as her other three picks, watch the video above, and then click through the gallery to see what the show’s Emmy-winning costume designer, Janie Bryant, had to say about the same looks! Be sure to tune into Mad Men this Sunday when season 6 premieres at 9/8c on AMC.