I just had a question regarding how water resistant the smart alec is as compared to the brain bag. I noticed the brain bag had a paragraph devoted to the water resistant coatings applied inside and out, and is also marketed together with nikwax, and both of those are absent on the smart alec page. I think the brain bag might be too large for my purposes, but i'm worried about being caught in a downpour with my laptop in the smart alec. How weatherproof is it? Can nikwax be used on it? If the laptop is inside a braincell inside the smart alec I can't imagine it would get wet, but I just want to be as cautious as possible. Thanks.