I recently received a link to SOTA videos on YouTube.
SOTA stands for Summits on the Air, and the videos are
quite interesting and the Hams who activate some of these
summits are very intrepid. One of the videos contained a
term that was unfamiliar. What is a Bothy Bag?
A bothy bag is a sort of survival bag or group shelter.
Bothy on Wikipedia
A survival bag of this sort would be excellent for your go bag,
for any time or place, where the weather might surprise you.
For instance, on the Appalachian Trail. Something the Ninja QRPer,
WB3AAL might need.