This is a really nice bag! It is made of nylon. The bag measures approximately: Height: 15.5 inches Width: 13 inches Depth/Thickness: 8.5 inches Kate Spade Ella Backpack, Kate Spade New York Backpack, Black Quilted Backpack, Large Puffy Backpack, Kate Spade Quilted Backpack, Black Kate Spade Bag, Women's Fashion Backpack, Stylish Quilted Backpack, Large Black Backpack, Kate Spade Ella Quilted, Puffy Backpack Kate Spade, Quilted Backpack Large, Designer Backpack Black, Kate Spade Quilted Bag, Ella Backpack Kate Spade, Quilted Black Backpack, Kate Spade Large Backpack, Puffy Quilted Backpack, Kate Spade Backpack 15.5 inches, Fashionable Black Backpack.