Marvel Avengers Assemble 11" Toddler Backpack With Detachable Lunch Bag One Avengers 11" Backpack with Lunch Bag Backpack: approximately 11"x9"x3.5", zipper closure, with Hulk, Iron Man, Captain America Lunch Bag: approximately 7.5"x5.5"x2", zipper closure, with Captain America Insulated Lunch bag for keeping foods warm or cold Adjustable back straps