39.3 Liter, 600D printed poly; 600D shadow ripstop poly/1,680D poly (Black/Silver) Large secondary compartment for belongings and essentials. Main compartment with padded laptop and tablet/e-reader sleeves. Easy-access front sleeve pocket. Front zippered pocket with deluxe organization panel and key clip. Fleece-lined valuables pocket. Ergonomic padded straps with adjustable sternum strap. **Bags not intended for use by children 12 and under**