I don’t quite understand the previous reviewer; their review indicates they were using these bags for long term storage. These specific bags are travel bags, used to help reduce the bulk of your clothes when travelling. They aren’t intended for long term usage and because they are meant be rolled to squeeze the air out, they aren’t tightly sealed.

All that being said, these bags are useful but have one particular quirk. If you truly roll these up from the zippered side, the clothes tend to bunch at the other end because they slide. We have found that rather than rolling, it is better to lay the bag on a firm surface and lay down on it slowly. However, that is not nearly as quick or convenient as rolling them and as such, makes them less likely to be used more than once or twice for the purpose of reducing bulk.

There are some positives regardless of the amount of air you squeeze out (or don’t squeeze out as the case may be); these bags are heavier duty than regular ziplock bags and can be used to store items to keep out dust, mildew, etc. They are also useful when travelling when you are likely to have wet swimsuits, towels, or other items that you need to keep separate from your other clothes.

I rated these bags 3 stars due to the rolling issue I mentioned above; it really takes away from the ease of use and original intended purpose (to have your clothes take up half of the normal space). However, the other uses I mentioned keep them from being a waste of money and since they are part of Amazon’s 4-for-3 promo as of this writing, it makes them a better deal.
Rating: 3 / 5

I must admit I was skeptical of this product at first. I worked in the “as seen on tv” industry for quite a few years and very little of what is sold that way actually works even remotely as well as their commercials claim. Space Bags appear to be the rare exception. We bought some on the recommendation of my mother in law and took them on vacation with us. I would estimate that we were able to fit probably at least 50% more items in our suitcases, which is pretty impressive. The bags are pretty easy to use, although the rolling method really doesn’t work as well as the “sitting the bag on something solid and pressing on it” method. Clothes come out wrinkled to some degree, but probably not any more so than if you squished them in a suitcase. The only think I would watch is that they might actually allow you to put to many clothes in a single suitcase, which could cause weight issues if you try and take it on a plane, so weigh your bags before you go. Overall, highly recommended.
Rating: 5 / 5

We were amazed at how well these bags worked. If it weren’t for weight issues we could have packed all of our clothes for a 14 day European vacation in one 26″ suitcase! We mainly used them on items we weren’t worried about getting wrinkled but found that the wrinkles in the clothes packed in the bags relaxed quickly upon wearing the clothes. The bags also allowed us to bring extra “just in case items” such as a heavy jackets for unexpected bad weather. I also have two favorite pillows I sleep with that I miss when on vacation. We put them in the bags and they flattened out perfectly. Lastly, they make bringing home dirty laundry easy. Can’t say enough good things about them. Easy to use over and over.
Rating: 5 / 5