Originally Posted by Varroa
They have a Nikwax for cotton and fleece. You could try one of those. The cotton one can make a t-shirt into a water bag for a short period of time.

I missed out on hearing about this stuff?!? Man... Now I have to go to REI, again.
I'm gonna use it on some bandanas and see if I can't use them as water scoopers in some of the creeks I filter from when camping.