If you've never used bags like these for packing a suitcase do yourself a favor and get a set.A good friend recommended these packing cubes and it has changed my life! This set comes in great sizes to pack everything making it easy to travel especially when you've moving around. Highly recommend them.I really enjoy these cubes and have them in almost every color at this point. They are a great way to store different types of clothes for different purposes, for example I use red for workout, blue for "going out" clothes, green for beachwear/tank tops, etc. Can't go wrong at this price.I bought 5 of these 4 piece packing cubes for our family. All different colors. We were going on a long road trip, and these worked out great! The kids knew their colors and were able to find their own clothes without asking me. It was nice for one night stops as we just took a cube out of the car and left the rest of the stuff. My only issue is that one of the colors, the bright blue, already has some loose strings around the zipper. I don't know if it's that color or just luck of the draw. In particular, one of the cubes I don't think will last long. None of the other sets show any wear. I have washed them a few times and we used them on 2 different trips so far.For those wondering how to use them, this is what we did. I packed the medium one with 5 days of summer clothes. The large one had an additional set of 4 days of clothes (incl undergarments), extra pajamas and 1 pair of jeans/pants. It varied per kid (due to clothing size), but the 2 small ones had socks/undergarments, pajamas, and a bathing suit. The large cubes we kept in the car until we were done with the smaller cubes. I wish you could buy individual sizes in specific colors as I would have liked to augment my husband and my cubes with another medium one. We needed just a bit more room (I kept our jeans and pajamas loose outside cubes). Also the big cube was too much room for my 7 yr old. At night I would just pile up each cube color and in the morning the kids knew they could pick whatever was in there. No asking for "where are my socks?". It does take a bit of planning but it was worth it!All in all, I would definitely recommend, just keeping my fingers crossed on the longevity. For the manufacturer, I would recommend changing the tones of the blue cubes. In a suitcase, the light and dark blue look very similar and are hard to tell apart. And please add more colors - maybe purple.The only negative reviews I read were the dyes fading on clothes if they were to get wet, so I washed my cubes before my first use. I really do like the quality and color of mine, (gray). The only thing I wish I had would be a second 'larger' sized piece. I use the second small piece for one outfit I plan to use first or quickly have access to if I need to change into something (shirt, pant/short, underwear, socks, etc.). That will fit in there, but packing wise I would prefer to have a second larger size. But overall, would definitely recommend and will plan on purchasing additional sizes in time. First world problem, would prefer aesthetics designs/color pallets. lolI bought some of these packing cubes years ago in the Japanese Dollar Store (100 Yen, Daiso). They had the variety of sizes also but were about the $1-$2 range. I found them pretty useful organizing things when packing. Some of there were torn since I overloaded them so I needed more. The Daiso in the US does not seem to carry them and I have no plans to go to Japan.The ones from Amazon are a lot better quality. However, they seems over-priced in my mind. I hope they last a lot longer.I snapped a photo as soon as I opened the box - they were neatly packed in a taped clear plastic bag. All 4 laid out to show sizes in comparison to each other and this blue is a gorgeous royal. Because I read a ton of reviews prior to ordering, I closley looked them over. Some complained about loose threads and those getting caught in zippered as well as a few had open seams. I only had a few threads on 1 bag and easily trimmed them off. ALL seams were securely sewn 100%. I did notice that this fabric is prone to ravel but I believe that once it's raveled down to the 1st of 2 stitch lines, it'll stop completely. Of course I will be cognitive of this issue moving forward and will cautiously open & close and trim threads as needed. I also have compression bags by another company (at a much higher price point) but feel that although compression bags have their advantages, they are not needed for each travel experience. I have upcoming travels planned and look forward to adding these 4 to my other packing bags.It was exactly what I needed.These things make my organisation so easy it's unreal. I have my clothes in one, underwear in another, toiletries in another and electronics in the final one. And they fit perfectly in my Osprey Farpoint 40Very good product. Can organise things neatly in a suitcase. Bigger package holds 2 jeans and 6 t-shirts (provided you roll them and set properly in it). Smaller one can be used for inners or toiletery kit.Trovo questi cubi molto costosi (costano la metà di un discreto trolley), ma a prescindere prima del primo utilizzo li volevo lavare ed ho scoperto dall'etichetta interna che non sono lavabili in acqua, né stirabili. Ora io non so chi possa pensare che un contenitore per indumenti non vada lavato periodicamente, ma io no di sicuro, e neanche si può pensare di portarli in lavanderia e farli lavare a secco, tanto varrebbe ricomprarli. Li ho lavati lo stesso in lavatrice con un programma per capi delicati e senza centrifuga, non si sono rovinati per fortuna, comunque non so chi possa concepire un prodotto del genere da lavare solo a secco. In definitiva secondo me si può trovare qualcosa di più economico e magari anche lavabile senza problemi. Non li consiglio.Excellent product. Really helps keep things organised in the case. They are the perfect size for each set of clothing you want to put in them. The zips are of a good quality and the fabric seems very strong. Would buy again and would recommend for a cheap alternative to similar products.The old adage buy cheap, buy twice really seems to be key here. I wanted a bright set to differentiate my son and my own clothes in my suitcase. But these started fraying at the seams as soon as I opened the packaging for the first time. This got in the way of the zip and made it difficult to close. So I trimmed it and it happened again. I've used them for one trip and I think they'll fall completely apart after my next trip. They work in so much as they hold the clothes neatly, but they're have a one trip or maybe two shelf life. And I hate items designed to fall apart - planned obsolescence - it's not good for me or the planet