I met a thru hiker a few years back on the AT who had some type of water bladder unlike any I have seen. It was thicker and the outside was red IIRC. I think it may have been a 3L. He would put it on top of his pack under the lid for easy access to refill. This was the height of a very dry summer. Anyone know what it was?
Also, anyone else keep their bladder on top of their pack?
If not, how do you deal with refills when it's stuck in your pack?