Removable and adjustable faux leather straps to wear as shoulder bag, crossbody bag, or classic backpack. Outer zipper pocket for phones, wallet, music player, headphones. Inner zipper for IDs, cosmetics, calculators, pens, pencils, Dimensions: 9.0″ x 10.0″ x 4.0″, Medium dimensions: 13.0″ x 12.0″ x 5.0″