Dallas costumes
Credit: Courtesy of TNT

A new episode of Dallas premiered last night, and we caught up with the show's costume designer, Rachel Sage Kunin, to get the exclusive details about the Texan looks she created. Fun fact: Kunin put Rebecca (Julie Gonzalo) in this gray Banana Republic coat and sherbet BCBG sweater for a very specific reason: "Rebecca has severely jeopardized her relationship with Christopher (Jesse Metcalfe) and is determined to prove her commitment to him," Kunin told "Given her newfound responsibility—being pregnant—I felt it important to use gray in her costume which is a sign of maturity." Click through the gallery for Kunin’s take on more of last night’s outfits.