Textured poly weave,Magnet closure and zipper at opening for security,Interior organizer pockets,Backpack straps tuck away in large back pocket when used as a tote,Integrated padded luggage trolley pass through on back,Laptop sleeve: 14.5"h x 12.9"w; fits most 15" laptops,Dimensions: 18"h x 12.9"w x 8.2"d,Capacity: 1,220 cu.in./20 L,Weight: 1.76 lbs./0.8 kg,Note: Bags not intended for use by children 12 and under.