Jung sisters revealed their height on "Jessica and Krystal".
The broadcast on June 10th showed the sisters going shopping in L.A. When they visited the book store, Krystal spotted a book with title "I'd Rather Be Short: 100 Reasons Why It;s Great To Be Small". Jessica then asked,"How tall are you" in which Krystal answered,"I'm 1m65". Jessica then revealed her height to be 1m61.8.
Krystal then looked at the book and said,"I will buy it for Luna unnie" and laughed. She then asked Jessica for whom she would buy the book, and Jessica replied with Sunny and Hyoyeon.