I have a 17in monster of a laptop for work that fits in the protective sleeve. This backpack was also able to help protect said laptop in a car accident, rain and with the vents is not terrible to ride with even in very hot and humid weather. I ride with this backpack during my 20 mile commute for work.

It's spacious with a good amount of smaller pockets. It's not difficult to find what you need although it is a little difficult to zip up first around the top corners. I can fit all of my work materials, clothes and my lunchbox inside if I really want to.

... it can be awfully difficult to get the main zipper on the Tarp version open or closed around the top corners of the bag. The bag is sewn square, and the tarp material is so heavyweight that it's stiff, especially with the flap that covers the zipper folded down.

I love the size of the bag, how easy it is to put things in and take them out when you can get the zippers open, the internal organization, etc. The zipper is the one issue I have with the bag.

Here's hoping it gets easier with time.