Tested this out tonight on my Zpacks Hexamid tent stake bag(size regular) and the dimensions are near perfect with a little room on top for a prefilter which I haven't fully developed as of yet. Most likely will be a hose line filter or a MYOG charcoal filter of some sorts. Anyway this bag will have to be seam sealed so as to stop all leakage out of the bottom of the bag(can't seal the top though,ya know). This will travel on the outside of my pack in 3 season and somewhere on the inside of my pack in the winter so as it can't freeze or its useless!! For the price that Joe offers these on his website, $4.95, this seems like a no brainer to me. Wonder if he could Tape such a small bag?? Oh the possibilites!!
