Ok, I love this backpack. I bought it for a trip to Europe and it served me well there, and has on domestic trips also. I find it much more convenient to carry a backpack and have my hands free so I started looking for travel backpacks. This one is cool for various reasons. First, the orange'ish color (it's not red) makes it easy to spot at the airport if you check it, which you don't have to. It fits easily into the overhead compartment in an airplane even when it is packed full and it slides to the side of the compartment so it can fit with other people's sometimes ridiculously bigger bags. There are a multitude of pockets in this bag and all of them are quite convenient.  There are handles on the top and the side if you want to carry it a different way. There is a mesh section inside that I used to put dirty clothes in (in plastic bags) and then put them on that side of the backpack keeping my clean stuff in the main compartment. You can also unzip a side of the bag to make the bag expand more (like with some suitcases) when the bag is getting full. Then you can use the side clips to lock it into place so that it stays centered when you are carrying it. The shoulder straps are adjustable and this backpack was not sliding off of my shoulders as I walked miles with it. There is a strap that goes around the waist also to keep it in place and I used it for long walks. Mine was loaded down the first time I traveled with it so it was heavy, don't get me wrong. If you pack light it will be light if you pack heavy it will be heavy. Regardless, it needs to be steady on your body and not falling off of your shoulders and it didn't. It was great and now I use this to travel even on short flights because its convenience can't be beat. I can have this on my back and have my hands free at the check-in counter or roaming the stores in the airport. Of course, I did have people in line behind me occasionally bumping it because it sticks out but after a warning look to a Frenchman after 2 unnecessary bumps into my backpack when I'd been up since 3am and was ready to scream, he got the message and gave me more space, ha ha! My only complaint is the little tab things on the zippers seem to fall off easily. 2 have fallen off. Doesn't affect you being able to zip it, or the actual zipper itself, but it's annoying because I wasn't yanking anything to make them fall off. Still, I love this backpack and highly recommend it. I have had it for a year & it has not torn or anything like that so I'd say the durability is good enough.  I use it with&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/eBags-Packing-Cubes-3pc-Set/dp/B004C0XZM4/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">eBags Packing Cubes - 3pc Set</a>&nbsp;which is also my favorite way to pack now.