"The Sisterhood of the Traveling Pants" is a novel by Ann Brashares that follows four teenage girls—Lena, Tibby, Bridget, and Carmen—who share a special pair of jeans. The pants magically fit each girl perfectly, despite their different body types, symbolizing their friendship and connection as they navigate life's challenges during a summer apart. As the girls embark on separate adventures, they send the pants to each other, sharing their experiences and personal growth. The story explores themes of friendship, identity, and the transition from adolescence to adulthood, highlighting the importance of support and understanding among friends.