When I first read about packing cubes I thought they were just a gimmick to sell more stuff I don't need.  Then after a particularly frustrating trip where searching through the suitcase for what I wanted caused stress and wrinkled clothes, I decided to give them a try.  Well, I am a believer now! This large set is the third set I have purchased because my husband and I argue over the one large packing bag we had from a previously purchased mixed size set.  Packing cubes are great to keep clothes organized, neat and if you have to do that quick "overweight" shuffle at the airport, you can take one pack out and throw it in your carry on easily.  They are also peace of mind if your bag is selected to be searched at the airport things won't go flying out of an overly stuffed suitcase!  I highly recommend them for anyone who loves to travel.  These large ones are great for pants, dresses, jackets, and sweaters.