Viajo a Europa por poco más de una semana y tuve que buscar maletas de mano que fueran compatibles en todas las aerolíneas de bajo costo. Esta maleta tiene las dimensiones perfectas. (55cmX40cmX20cm)El peso es ligero por lo que se puede cargar con bastante para hacer un viaje corto pero con todo lo que se necesita para hacerlo cómodamente.En una foto puse el bulto cerrado, y en otra con todo lo que me entró y aún quedaba campo para su máxima capacidad. Con todo esto, llevo 8kg, y en muchas aerolíneas permiten hasta 10Kg.Por la calidad del material, no recomiendo que se cargue hasta su capacidad máxima, tal vez la costura de los zipper pueda fallar, pero siento que tendré una maleta por varios años para volar de manera tranquila con un CarryOn ajustable a muchas aerolíneas. Calidad - Precio totalmente razonable.Recomiendo al 100% la compra de esta maleta.We purchased these packs for a very particular purpose and while they are not perfect packs they worked well for our needs. (*Note, not all of the packs they offer are the same size, so be careful when you order - in the picture I shared, the "galaxy" and navy packs are slightly smaller than the yellow, pink and red). Our party of 6 (myself, my husband, our 3 children and my mother) wanted to "backpack" around Europe for a month without checking any bags and we were able to do so with these. Each airline has different carry on bag policies - we flew TAP and EasyJet. Tap allows you 1 personal item (such as a purse) no more than 4lb and 16x12x5 inches and 1 piece of hand luggage no more than 8kg (about 17.5lb) and 22x12x5 inches. In other words we were limited to 21.5lb of gear (including the weight of our bags) other than what we wore onto the plane. EasyJet does not have weight restrictions but you are allowed only 1 carry on item (NO personal item) that does not exceed 22x17.5x10 inches. The primary reason I purchased these bags is because they are almost exactly the dimensions of a "typical" carry on bag and weigh about 1.5lb. Next, we could compress them and they are flexible so while they are 21x14x9 inches when full, we could pull on the straps at get them to compress to meet the requirements of TAP. When they were filled with 17.5lb of gear there was plenty of room for us to add our "personal items" as we needed to do when we flew EasyJet. When you limit weight, you can also limit comfort and that was the case with these bags. Unlike hiking packs, these have no frame or straps with which to displace the weight so they were less comfortable than hiking packs (I would NOT use these for back country hiking), but we knew that going in. I was concerned about durability (I read some reviews in which people complained about their bags falling apart) but all 6 made it through a month of fairly intense travel intact. There were times when my husband and I had "extra" gear in our bags (that we didn't fly with) and were carrying closer to 30lb with no problems. Additionally, these bags were not treated gently (my kids can be rough when packing/zipping, they were tossed around a bit, used as seats, etc...). Still, after a month, there were no tears, rips, or loose seems. Another feature you give up when you go with a bag this light is "sturdiness" - because they are flexible and not reinforced, items shift around and though they started looking rectangular when we packed, items would shift down but this is more of an aesthetic complaint. I realize in the pictures the bags look like they are very different in size, but that has to do with the frames of the wearers. For reference, the person carrying the yellow pack is 6'1", the ladies with the navy and pink packs are about 5'5" while the smaller two are about 65-75lb. A huge benefit of traveling with packs in Europe is that many streets are stone, cobble stone, uneven, narrow with many stairs and hills etc... It can be very difficult using roller luggage (wheels frequently get stuck or break). There are many times when one needs to carry roller luggage and with 3 children, it is easier to have them wear their luggage on their backs than carry it themselves or have us carry it for them. If we were traveling to a few hotels with easy transfers this would not have been a consideration, but we used a great deal of public transportation, stayed in over a dozen cities and walked with our luggage a great deal, so these were perfect for us. Given our relatively specific needs, I am very happy with these bags, will use them again in this capacity and would recommend them for this type of travel.Update 8/19: Just returned from five weeks in Australia with this bag and I LOVED it. Had absolutely no issues with durability. Everything- zippers, straps, pockets- still works perfectly. It's easy to pack and carry although I would have liked a sternum strap to help balance the load.I had a lot packed in there- toiletry case, a change of clothes, pajamas, shoes, my knitting, a Kindle, my electronics organizer, a scarf and hat. Even with all that, I was able to nearly pack and carry it with room to spare. The straps don't dig and the padding is nice. I even washed it in the sink when I spilled juice on it and the dye didn't run. It also dries quickly. Outside compression straps also did their job. All in all, I'd buy it again and I'm happy I didn't spend $100+ for a bag when this one did the job admirably.Bought this for a trip to Australia. Qantas' carry on size is standard but the weight limit is only 15 pounds (economy) and my rolling carry on weighs 7 pounds empty. This bag weighs next to nothing.I did a lot of research before my purchase mostly because I wanted the most bang for my buck. I read Amazon reviews, and backpacker and traveler article reviews and watched video reviews (you should see my ads on Facebook- luggage. Everything luggage.) I really liked the eBags TLS Motherload series but I just couldn't justify spending $120 on a backpack carry-on that I would only use a few times a year (1 flight and 2-3 weekend road trips) especially since I already own a rolling carry on. I also liked the Hynes Eagle bag but after reading lots of reviews I was concerned about quality, the lack of warranty and the fact that the company doesn't appear to have a webpage, only a Facebook account. Something about that didn't sit right with me. And then I found this backpack.Cabin Max does have a website and also offers a warranty. They're a British company. The bags are a little cheaper than the Hynes Eagle but the quality appears to be good. If these were school backpacks, this is similar to a Jansport rather than an LLBean. Good quality and absolutely serviceable but not with all the bells and whistles of a Bean bag (with the exception of the warranty). It's not a high end backpack but it does come with nice, thoughtful touches- a padded back (around the shoulders and lower back) and straps, decent zippers, and an organization pocket (the large mesh pocket will fit a tablet, not a laptop). If you use packing cubes or are someone who rolls their clothes, you could easily fit 3-7 days worth of stuff in this bag, depending on the season and how heavy you pack. I bought the flip flop pattern and the flip flop print is larger than it appears in the pictures. It looks like tiny flip flops. They're not.I wish it had a sternum and/or waist strap, side carry handle, and compression straps inside the main compartment But for 40-ish dollars, I can't have it all and that's okay. If you want or need those things, this is not the bag for you. But if you need a cheaper bag that's good quality and will hold a ton, this is the bag for you.Came quickly in the limited fabrics for Prime delivery. Looks durable. Looks like we canput plenty in for a 4-5 day trip and stillhave room. Taking them on airline this weekend, first time to use. ???This backpack has gone to Peru and Europe with me as well as when I am traveling domestically. It is my first go to bag if I want to avoid checking in a bag.Perfect size for fitting in to the cabin so long as you don't overfill it to the point that it's got big lumps etc sticking out as it'll be a pain to fit and if you're travelling on a budget airline they'll pick you out to have your luggage tested and you'll be hit with fees.The carrying straps are comfortable enough for travelling between airports and accommodation but I wouldn't recommend it for hiking etc.The space is good with 3 pockets: the large main pocket, a smaller pocket with webbing and pockets for keeping smaller items (phones, chargers, papers, currency etc) and a thin pocket on the front ideal for A5 size papers/books (or folded A4). The main pocket has long zips which almost allow you to open this bag out like a traditional suitcase. Rather than having to stand it up while packing as it the case with most backpack-type bags I'd lay this on it's back to fill it due to how well the main pocket opens.The bag is much lighter than similar sized bags.The issue I had when travelling with this was more with the weight of the luggage I was putting in this bag rather than with the size. I had to leave space in the bag as I only had a 7KG allowance but could easily have fit 10-12KG in to the bag.Really happy with this purchase.I fly a lot with low cost airlines, mostly in Europe. I have used this backpack flying with Ryanair, Easyjet, Norwegian, BA TUI, and have so far not ever been denied at the gate for exceeding the dimension restrictions for carry-on baggage. I bought this backpack specifically to be able to carry onboard the maximum allowed by even the stingiest airlines. Very satisfied so far! What prevents this from being a 5-star product is that the material feels very flimsy. In case of rain I doubt the content would stay very dry. And I also find it very annoying that the different compartments do not hold any form of sturdy position if the zipper is pulled all the way down. They sort of just collapse under their own weight, there's no stitches to keep them up. So in case you forget to pull the zipper up and lift the backpack, the compartment will fly open and the content will fall out. But as long as you keep this in mind the backpack is completely functional. At this price point I 100% recommend this backpack.Las costuras son de pésima calidad. En el primer viaje, con poca ropa en su interior (viaje de 3 días), la costura de cierre principal se ha descosido y la mochila quedó inutilizable. Me llegó hace 3 días y ya no la puedo usar.Bought 2 of these for 7 individual flights over the past week. One no problem but mine (blue one) the strap is detaching from the bag (seller is arranging a replacement).Positives:- excellent value for their use- travelled for 2 weeks to and around Australia on international and internal flights (7kg limit) and they were excellent- lots of useful pockets to help holding paperwork (itineraries / passports etc) and a couple of zipped pockets for things like earbuds / cables etc- material (not a hard shell) with side restraints helped to ensure that bag could be shaped to fit into the airline’s luggage guide- feels like they hold loads … as I say, did 2 weeks in / around Australia from the UK and (albeit you will have to consider / limit what you pack) they were more than suitable for use- feels sturdy - especially the top carry handle- 3 separate compartments - very front one useful for iPad etc; middle one for paperwork / easier-to-reach items (books / medicines / earbuds / itineraries etc); main good as main clothes etc storage- airlines happy to board me with this bag as carry-on- allowed me to avoid Heathrow check-in queues as these are carry-on size and also avoid need to wait for hold luggage to be offloaded at the end of the flightNegatives- few but (as I said) one of my straps looks like the stitching has gone (see picture) however other one is fine (plus carry handle sturdy) so was still able to use. Seller arranging replacement. Travelling companion had no such issues with theirs.In short, won’t do you for extensive travels but more than adequate for short-ish (2 week) trips even to long haul destination if you make appropriate 7kg packing choices!! Good number of pockets / compartments and very reasonable price. Will use again.I really wasn't sure what to expect in terms of size as it's sometimes difficult to visualise these things, especially as this is a soft bag rather than hard-shell. However, I was easily able to fit enough clothes and accessories in there for a 3 night stay with room to spare. The bag was well within the Easyjet cabin allowance. I suspect with some careful planning I could easily pack for at least 5 nights with this bag, maybe 7 at a push. The soft, rather than hard-shell, exterior allows for a little more flexibility with packing and comes with external clips to squash everything back within limits. There is a well thought out external section with inner zips, liners and pockets. While the overall bag (including zips) seems pretty robust, I am less convinced about the internal pockets which I suspect may tear with regular use. Padded shoulder straps made it comfortable to carry and easy to sling over one should or wear as a rucksack. I was a little niggled that no luggage label was included but other than that, no complaints. Are there better bags out there? Probably... but not at this price. Great value.