As I had decided after much back and forth Consider for Amazon backpack and he finally came, my first impression was: Oh God, who holds the out never! The fabric seemed too thin and was also as plastic. But I tried it anyway, and after two weeks of daily test I have to say: compliment I did not think! He is solid, practical and tucked almost everything. Whether the two large-format nonfiction is now next to a college block with a 1-liter bottle of water and a lunch box or a laptop, I do not care, you can accommodate everything, and he has a lot of smaller compartments for purses, pens, cell phone, etc. The back is with reinforced cardboard, if that would protect the laptop from a fall, I do not know, but I have my 17-inch laptop into getting with bag and am satisfied. The networks outside I do not use, and the power of a carrier already shows slight signs of wear, but the long-term test is shown how stable is really everything. The zippers keep at least some of! That's why I do not miss him. The only drawback: the carrier pushes on my neck tendons, the unpleasant tense up when I wear it too long. But I do not want to go hiking with him, but use it as a backpack for every day! And for that he works well in my opinion.