Originally Posted by dwoloz
Thinking about picking up some Nikwax as REI and trying to waterproof my backpack. Think that would work?
Don't bother. Get a Sea-to-Summit SilNylon dry bag that fits like a pack liner.
I've got a GoLite pack (not even close to waterproof) that I use as my commuter bag. I use a dry bag liner, and I've had no issues with keeping things dry. (And I carry a lot of important lab documents and electronics on my commute)