after years of sharing this story anecdotally and buying nothing but their gear ever since, i realized i should probably write this review. disclaimer: i am not overly shilling their gear in any way whatsoever, but i also routinely wear anything they make because of this: this was the first chrome bag i bought. friends introduced me, and sold me on it. a few weeks into owning this bag, i was on my bike with my laptop, and a water bottle that's notorious for not threading correctly; computer was in one compartment, and the (unbeknownst to me) rapidly leaking water bottle was in the other. i noticed this an indeterminable amount of time after aforementioned rapid leaking began, but only when i felt a faint damp feeling on my lower back that decidedly wasn't sweat. panicked, i hopped off my bike and observed an established pool of what was once in my water bottle now trying to get through seams, layers, whatever water wants to do. in the other compartment of this bag was my laptop, which was desert-level dry, thanks to how well this is built. all told, i removed the contents of the bag, poured the water out, and let it sit in the sun for like 10 minutes. bone dry. tl;dr - i'll pack any important thing i own into this, and stand in my shower for an hour with full confidence things will come out just fine on the other end.