With dual main compartments and an ultra-padded air mesh back, this casual style pack is an excellent choice for school or work. 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 organization panel and key clip Fleece-lined valuables pocket Ergonomic padded straps with adjustable sternum strap Laptop sleeve: 15.5???h x 11.25???w x 1.5???d; fits most 17??? laptops Dimensions: 19.5'h x 13.5'w x 9'd Capacity: 2,400 cu.in./39.3L Weight: 2 lbs./0.9kg *Bags not intended for use by children 12 and under.