Very stylish and quality materials. I Really loved this backpack.Not waterproofWanted to make sure to get a bag that would hold a 17 inch laptop. I ordered one from Dell at the same time as the laptop itself, but it turns out to be a basic Belkin bag. This has many pockets so I can keep things organized such as the mouse and adapter. Not sure I like how it opens but I will probably get used to it.So I have a 17.3 in laptop and it's hard to find a cute bag that will hold it. Plus I have these medical coding and billing text books that are fairly big that I have to take with me. It carries all that and a few more things. Has held up well.This bag is perfect! It folds out flat (amazing). It has two stretchy water bottle pockets that can hold a full sized water bottle (what a concept). It has a front catch-all zipper (should really be standard). It's rubberized and water resistant (thank you electronics). It has organizational pockets ALL OVER the inside of it (fantastic use of space). It has a laptop pocket big enough for a proper workstation and a pouch big enough for its massive charging brick (thank you mobile warriors). And EVERYTHING IS IN THE SAME COMPARTMENT!It's like they made a backpack just for me. Honestly. Did I mention it has a pass-through USB port for charging devices? Because yeah.If I were to design the next generation, I'd want maybe some more exterior pockets and some strain relief springs on the shoulder straps, and maybe some more color options. But I'm not complaining AT ALL. Cannot recommend this enough!This is perfect for getting through TSA. Fully unzips so that you can lay it open and take computer out. Also, it is difficult to find a backpack that fits my massive laptop, this fits perfectly. The padded pocket with the velcro strap keeps the computer tight inside so it isn't bouncing around. The backpack looks great and it water resistant also. I LOVE it.Overall I really like this backpack. It looks small when you receive it, but once you zip it together you realize it's actually fairly spacious. You can easily fit a 15inch laptop, its charger, notepads, pens and anything else you need to get through the day. The charger cable on the side is a great feature as well.Good cushioning.Lots of dividers.Comfortable to wear.It has a double zip that completely opens it (rather that say a top opening rucksack), not sure this particularly adds to the functionality???The zips are like on a waterproof jacket so zipping over a double seam - this is ok except as there’s a lot of curves to go round wonder how long is going to last?? Does seem very well built.My son did get caught in a downpour and reports inside was totally dry - even so have to say I’ve advised him to keep a couple of plastic bags inside for laptops (he carries two in his bag) - as u never know.He hasn’t destroyed it yet. So that’s a positive.Not sure why opens as it does, seems unnecessary to me tbh.Star off for travelling as I’d worry either the zips fail or (my son) forgets to do them up fully and things drop out....Overall a good product though.I can't recommend this bag. It has a lip at the bottom that digs into my back making it uncomfortable to wear, to the point where it actually made my back blister (I'm 5'11). After a few months the zip has broken. So it's probably fine fit shoving in the back of a car, but not recommend for wearing on your back.Very nice back used to commute. Great space and compartments. I like the feel of the inside material waterproof-like. Seems easy to clean. Comfortable straps.I like the fact that it is waterproof especially living in UK where it mostly rains. It’s got loads of compartments and it is not bulky. It’s quite slimline.Great product and one of buy again