Whatever one is the least expensive, most durable and reliable, functional and has the most positive reviews, I'm not really the best guy in this area though I still use my computer bag from a decade ago.
but I like red so I'll just choose that one since I'm not the one buying or using it lol.
I like the red Adidas one the most, it looks easier to carry and most likely has a laptop compartment. But the black puma also has a strap... But then Adidas > Puma Are you able to look inside? Make sure there's room.
The adidas red. The bags with straps are less awkward to carry, because the other bags either look like a purse or a sporty version of a briefcase and you'd be carrying them like briefcases too. I don't know, lmao.
You need a bag that doesn't have flimsy handles. If I am correct Adidas red is the only one that fits in that category. However I don't think it is large enough to carry everything you want. I know exactly what you're talking about because I'm a graduate student and have to carry an enormous amount of junk around. Thank God I'm always on a diet so the food part doesn't apply. I would reevaluate. I would pick a black bag or dark blue bag that has heavy handles and then look inside for the pockets. What kind of pockets are inside will they hold pens paper etc. is it big enough to carry your laptop 17 inch laptops on not readily fillable into most bags.. Remember the inside is just as important as the outside
Puma black. Black is a "colour" that can go well with a lot of outfits and won't show smudges/marks/dirt as obviously. Not only that, it looks larger so you can fit more textbooks, books, notes and nicknacks in, and it looks like there are more compartments to make it easy to locate specfic items that you may need to grab out quickly and quietly during a lecture. Nothing worse than grabbing the lecturers attention when you don't want it.
puma black can easily fit everything you wear but the prettiest is the puma navy blue the red one is cool too but I don t know about matching stuff with it heck I am more confused than you :P what degree are you going to do? ^^