I bought cheap packing cubes from a different site to see if I would use them before really investing. They were so convenient but fell apart on the first use. Decided to purchase these on a lightning deal and they have worked fabulously. The zipper is sturdy and hasn't fallen apart like our other set, it comes with straps to hold your clothes and snaps to minimize each bags' size if you need. These make packing and traveling so much easier because it allows you to get unnecessary items out of your way when rifling through your suitcase, thus making repacking a thousand times easier.