Who knows? That's what scares me.
Can, no matter what thru hike your attempting, still to get to the north pole you will have to be more then a little lost.
No, I don't know where they got them; sure wish I did. I've been looking around to see if I could maybe find a possible source, but haven't had much luck. I've found a couple that are way too small and a couple that are a bit too big, but like Goldilocks I'm still trying to find just right.