12 oz. concrete canvas, 85% cotton, 15% polyester; Padded laptop sleeve with hook and loop closure fits up to 17" laptop; Additional tablet pocket with shared hook and loop closure; Large interior compartment with secure zipper closure; Two interior slip pockets; Zipper stash pocket on front flap; Sturdy canvas top grab handle; Metal clip and d-ring closure on flap; Adjustable padded straps; Sturdy padded bottom; 18"H x 13.5"W x 4.5"D; Capacity: 18L