Evercreek Gear Casual Durable Backpack, 32 Liter, 15 inch laptop + Macbook sleeve, black Store books, use 3 large compartments, 1 front pocket, and an internal 15" laptop sleeve Hook on the top handle for clipping on items of your choice such as water bottles, keys or flashlights Internal media device holder can hold phones, iPods, and mp3 players with its headphone wire slot for easy access to earphones/headphones Main compartments are large and can handle many items Back is padded with Airflow system mesh for better ventilation and comfort