So I thought I read on the description that you zip up and compress the air out and then zip up the second set. There is no compressing out the air.Zipping up the second zipper dpo how full you want your bag can be a real pain and need assistance.Going to Hawaii for six days with a baby. So I used all the bags it came with and put in my carry on and babies carry on. You see the amount of cloths I had it really is a neat concept in that I can take the items I want however it is neater but it doesn’t give me any extra space like I was hoping for. It takes up the same amount of room in my carry on.

Would not get again because my other ones open all the way open so makes it easier to pack. Once pack not an issue. They do compress ok. Just nice when top lays totally out of way for packing and these do not do that. Everything else happy with.

Love these compression cubes! They were exactly what I was looking for. They have the main zipper and then the compression zipper. Many other packing cubes do not have this feature. In addition, these don't have a mesh covering which I actually prefer. Despite the fact that it doesn't have mesh covering, you can still see through into it and finding things in the bags are still easy to do. I tested to see the durability of these bags by placing a blanket in it. It worked great. I decided to add another blanket just to see how it did. I have to say it did pretty well. The zipper felt sturdy and strong. It didn't feel like it was going to break. The seams didn't appear to be pulling apart, like others I have used. I really love these. I just worry about the material because it does feel plasticky. If not careful, I can puncture it depending on what I place in the bags. But seeing as I will be using these for clothes during travel, I don't believe that should be an issue. Highly recommend these!

I was extremely skeptical of these packing cubes when I received them, as they are so thin and lightweight I was worried about their durability. It turns out, my worries were unfounded; I was able to fully stuff these cubes, and the zippers held beautifully, as did the stitching. My husband and I took our kids on vacation, and we were determined everyone would just take a backpack. The largest of these cubes allowed me to pack five days worth of clothes into my own ~15 inch height backpack ("regular" size backpack, see pic), along with a small toiletry bag and travel scarf. I packed my husband's clothes into the other large cube for his bag (slacks, swim trunks, two tees, two button-downs, and a thin sweater, see pics), used the smallest bag for his socks, undies, belt, and sunglasses (pic), then used the two small cubes for two of my children's clothes (see my pic of one packed with shorts, leggings, swimsuit, tee, undies, and a sweater with plenty of room left), and had them all put the bags into their personal backpacks. It worked wonderfully, and I just wish I had another set of cubes so I could have packed my other kids' clothes into them!These packing cubes are amazingly lightweight (perfect since we didn't need additional weight to carry), and the nylon ripstop material is strong. The zippers all pull easily, and I didn't have problems with them getting stuck on the bags themselves (an issue I've encountered with other compression cubes). I like the slightly see-through material, as it makes it easy to see the bags' contents, and the carry handles on the top, perfect for pulling them out of a backpack. Depending on how I pack them, and exactly what I pack (obviously something like jeans won't smoosh well), I can save almost half the space of just stuffing my clothes into a regular (non-compression) cube. Too bad it also doesn't make the contents weigh less... ;-)Overall, these cubes are great for organization and for saving space. They are durable, and I anticipate years of usage in hopefully many more travels. I would recommend these compression cubes.

These packing cubes are a nice addition to my travel needs. They are handy for shoes, clothes and dirty laundry and come on several sizes.

These cubes are well made and the material is great quality.Unfortunately, I didn't find the compression very good.I got 6 men's XL tshirts in the largest one, but not sure they took up much less space after ""compression"".Maybe I was expecting them to be more like the vacuum compression bags when they're nothing like them.They will still be useful for organizing smaller luggage. Packing cubes are always nice.

Originally , I got these because they looked great for travel and even storage.I was a bit shocked when they arrived with how small they actually are. I was very skeptical about the ability of those to compress much of anything.But , I was willing to put them to the test.I tested the large bag with 2 different blankets stacked on top of each other and didn't actually expect them to even close in the bag (which seemed quite small) much less compress to a flatter version..Between the dual zipper system and pressing out the air ~I was able to get the pack down to a very slim version of what it was.I was very surprised and impressed!I can definitely tell these will be helpful , when I go to pack for travel.