One of the best travel accessories I have purchased in a long time. Most packing cubes that I have used in the past are not of a compression style, these are easy to load and then simple to zip down for compression. The zippers are smooth with no tendency to catch on the material. I found the sizes to be just right with the larger ones fitting nicely in a carry on spinner bag. The material seems to be tear resistant but yet is light and translucent enough to see what is inside.I did initially question the handles, to me that seemed to be a useless feature that would take up space. But they are convenient when you want to grab several tubes at one time.The laundry bag is a great idea as well.Great kit with good features and a perfect selection of sizes.