After searching a bunch, I'm not sure that Hattie's stripey pink dress in this Sense and Sensibility is the same as Keira's stripey pink dress in Pride and Prejudice. Here are my screencaps:





I think the P&P dress has a slightly differnt pattern (alternating thick and thin darker stripes) than the S&S dress (uniformly thick darker stripes with thin stripes on each side as borders). Also, there seems to be a different front seam - the P&P dress has one from the center of the neckline to the left side of the waistline, while the S&S dress seems to be a much more vertical line.