This demonstration video discusses and shows the features of Pinnacle´s Hybrid Roller Backpack Bag. The Hybrid Backpack features a locking, extension handle that allows you to roll your gear instead of carrying it. There is also a top carrying handle for on-the-go situations. There are external compression straps which compress your gear for airline carry-ons. The size of this bag is 20" x 13.5" x 10" (2,700 cubic inches). For more space, you can add on the Kangaroo backpack.