"The Sisterhood of the Traveling Pants" is a novel by Ann Brashares that follows four best friends—Lena, Carmen, Bridget, and Tibby—as they navigate their teenage years. The story revolves around a magical pair of jeans that fits each girl perfectly, despite their different body types. The friends decide to share the pants over the summer, sending them to each other as they embark on separate adventures. Throughout the summer, each girl faces personal challenges and experiences growth. Lena deals with family issues, Carmen confronts her identity, Bridget explores love and loss, and Tibby learns about friendship and responsibility. The novel emphasizes themes of friendship, self-discovery, and the bonds that connect them.