I'm very happy with the product, it's very satisfying.
It is important for me to point out that a laptop with a screen size of 15 inches (a Lenovo V155-15API, to be specific) fits into the pocket only with a great deal of difficulty; yet, this is sufficient and handy for me.
Pros
Waterproof, lightweight, easily placed in pockets, and robust construction.
Cons
It is necessary to rearrange the position of the right strap on occasion since it "moves out."