I used to wonder why people needed packing cubes, but am now one of those people who won't travel without them. That said, I often see people ask about particular "brands" of packing cubes and I don't know why. It isn't as if we put packing cubes through a lot of wear and tear. I have at least four sets, and can always use more. They help me to stay FAR more organized when I travel. I can begin packing cubes of clothes/things I don't need in advance of the trip, and can stay organized no matter how many different places I go to. I also print out labels before each trip that say "clean" and "dirty." This way, when I'm packing to go home, I can put the appropriate label on each cube. This makes unpacking so much easier. I added this set to my collection not long ago, and am very happy with the quality and sizes of these cubes.