This handy bag is all the traveling artist needs to carry supplies. Comfortable adjustable padded backpack straps. Backpack style bag also comes equipped with heavy-duty padded carry handle and padded adjustable detachable shoulder strap for carrying options. Spacious 15"l x 6"w x 12"d main compartment can accommodate an array of Alvin storage accessories like an Alvin Stow & Go storage bin a large Heritage Arts wood palette sketch box or an Alvin portable storage case. Nine separate compartments! 14¾" x 1½" x 8½" padded inner sleeve is ideal for up to a 17" laptop or canvases with an adjustable hook & loop securing strap. Zippered top includes inside pocket for storing brushes and other tools and can accommodate a 12" ruler. Zippered outer compartment includes two dividers for storing standard file folders books sketch pads or canvases. Gusseted zippered outer pocket features 5¼" x 1" x 5¼" padded Velcro® brand flapped pouch for computer accessories three pen/pencil sleeves and an outer zippered 3" x 12" tool pouch. Both sides have gusseted 5" x 2" x 7" pockets for tools keys phones mp3 players or a water bottle. Zippers feature security lock loops. Durable water-resistant canvas. Maximum weight capacity 55 lbs.