As a student and outdoor adventurer, I bought this pack to keep my stuff dry. I have not yet had the time to test it on the outdoors (I.e. Hiking, mountaineering, kayaking, etc) so I can't give a formidable review on that aspect. As a student, I want to keep my notebooks/computer dry when commuting to school in the rain (by bicycle). It keeps my stuff dry but there is no laptop sleeve, and there's only one pocket on the front, which is very small and likely for keys and non-electronics. I do not believe the front pocket is waterproof but more water resistant. Also, there is no padding at the bottom so I have to be very careful putting my bag down when my laptop is in there. On the plus side, it's amazingly easy to load and unload but I think it would benefit from a small type of frame to give it some rigidity. The straps are very comfortable compared to other back packs and it's not heavy at all. I would say it's pretty lightweight considering it's a waterproof bag. I will be taking it out into the snow come this winter so we will see how it holds up. I fear for the durability of it with my laptop in there and no padding at the base.