Vera Bradley Essential Backpack Wild Roses. NWT It features a zip closure and a shoulder strap with an adjustable drop of 32.5". The backpack has a large size with a width of 13 inches, a height of 13.5 inches, and a depth of 7 inches. It also has inner and outer pockets for convenience and is lightweight and packable. The bag is made of cotton and has a Vera Bradley character theme.