Textured poly weave. Magnet closer 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