Pelican is a household name and an industry standard for for heavy duty indestructible cases, that are frequently uses by professionals in many industries, including military. I'm glad to learn that Pelican has expanded its product selection to include such consumer items as phone cases, backpacks, etc. The MPB35, weatherproof backpack is built to protect your mobile equipment: laptop, tablet PC, wires, chargers, documents, etc. While it won't compare with a hard plastic case,,  I've not seen a more durable or tougher backpack. The fabric used in this backpack is tough, almost rigid. Unfortunately, the straps lack good cushioning; the cushioning Pelican choose to use is moderately hard. The zippers are also hard to operate. They do not open or slide easily due to being designed to be water resistant. This makes zippers feel heavy, and they often feel stuck, especially in areas where the zipper turns from vertical to horizontal. On a positive note, the backpack offers a lot of different pockets and compartments. Lastly, I would find it difficult to justify the expense (due to the high cost of this backpack) unless I had certain equipment that is much, much more valuable. Overall, this is a top quality product worth your consideration.