So. when I first took this bag outta the box, I had quite a big shock. The bag was flat as hell, and looked NOTHING like 32 litres. Picking it up, it was quite a surprise how incredibly light it was. Fast forward, this monster can fit a WHOLE LOT of stuff. 1) Right at the back is the laptop compartment. In this compartment there a sleeve/section specifically for a laptop. I have a 15.4" MBP, and that thing fits in absolutely perfectly and snugly. It's briliiant. There's also some padding at the bottom where the laptop would otherwise meet the ground. I like that. apart from there, theres also a small sleeve area that fits a iPad perfectly and snugly. so if you're one of those who lug around a laptop and an ipad, this is just perfect. apart from that, this compartment would probably fit 1 other textbook or thin folder. There are also these 2 pockets near the top of this compartment. Incredibly handy for keeping small stuff. I use it to keep my earphone case, some pens, and my credit card holder. 2) The main compartment: This is the monster. I generally keep 1 hugeass binder, 1 folder, 1 lab book and 1 textbook and 1 fat nalgene bottle (laid horizontally on top). I love how spacious this monster is. There are also 2 mesh pockets near the top, which I use to keep my magic mouse, a mini-display adaptor, a portable iphone charger and some cables. 3) The safezone: i just bloody love this thing. I use it to keep all my non-so-tough electronics. I am usually able to put in my Canon S100 (which is inside a caselogic camera case so it's quite bulky), and sometimes a earphone. Don't expect it to be SPACIOUS enough to stuff tonnes of things. It's really meant for those couple of small stuff that are just fragile. Sunglasses, watches, camera, earphones etc. 4) There's this shove-it compartment below the safezone. I love that spot. It's great for you to, well, shove any random things into it, esp if you need very ready access to them. The space can also be expanded by loosening the 2 buckles at the sides. for day-to-day I just shove my umbrella and lunch box there although if you want, you can loosen the buckles fully, and you can easily shove a pair of running shoes in there. The ONLY problem is, anything put there is vulnerable to the rain cos well, its not covered. Additionally, if you carry this bag out in the rain, water is gonna collect inside this compartment. It baffles me how they did not put like some kinda drainage holes at the bottom. Oh well. 5) The front compartment: This is a nice roomy compartment good for shoving anything small and needs ready access. I usually put my mac charger, my graphics calculator, my pencil case and my spare sunglasses (in a case) in this compartment. 6) There are 2 side pockets for you to put your water bottles and what not. One thing that might be a little annoying is that if you stuff the main compartment to the brim, it kinda obstructs any attempts to shove a bottle or stuff like that into the side compartment. 7) The bottom compartment: so below the front compartment is this other compartment that literally lines the bottom of your bag. It's supposed to be for the MBP charger. I personally find it an awkward place (it's kinda tight and it's hard to push the charger in sometimes) and It makes your bag sit weirdly on the ground unless you managed to get it perfectly fitted in. Overall, this bag is preeeeetty much close to perfect. It's got MONSTER volume for keeping just about everything. The construction is BLOODY solid - the buckles and zippers are some kinda metal (i think its aluminum), the fabric is solid and durable and there's double stitching at most places. I also think the designers at Thule are absolutely brilliant. The compartments are actually incredibly practical and useful. Plus I think it looks pretty damn good. I'm NOT sure if it's suitable for people who are slightly smaller in build though. It could be a little too big for their frames.