The myth...the legend...the jeans from 'The Sisterhood of the Traveling Pants.' #internationaldenimday “The Sisterhood of the Traveling Pants” follows four best friends — Bridget, Tibby, Carmen and Lena — as they embark on multiple summers apart with the help of a pair of jeans that magically fit them all, despite them being different sizes. Directed by Ken Kwapis Screenplay by Delia Ephron and Elizabeth Chandler Based on the book "The Sisterhood of the Traveling Pants" by Ann Brashares Starring: Amber Tamblyn, America Ferrera, Blake Lively and Alexis Bledel