Fitting the Setout Backpack 45L, the Tortuga Setout Packing Cubes: Max-Sized Backpack Organizers keep your belongings how you pack them. Rather than using flimsy material, Tortuga chose high-quality polyester for these packing cubes. With this heathered material and YKK closure zippers, these backpack cubes are sturdy enough to truly keep your items organized. Use one for clothes, another for electronics, and the third for toiletries. Or you could choose to use one of these suitcase organizers as a place to keep your dirty clothing separate from the rest. Because each packing cube has a mesh panel on top, you’ll be able to easily see what’s inside. No more wondering where your last pair of clean underwear has gone.