12 oz./yd², 85/15 cotton/polyester concrete canvas, 60L. Three interior storage pockets. Zipper interior pocket on top flap. U-shaped top opening with 2-way zippers. Adjustable and removable padded shoulder strap. Sturdy grab handles with snap closure canvas wrap. Reinforced side grab handles. Large zipper compartments on both sides. Exterior front zipper stash pocket. Five additional exterior slip pockets. Sturdy, structured bottom panel.