ok, I read thread and am considering my EDC, also my "search bag". Having done SAR for years I lightened my bag to allow prep yet be able to do "hasty searches" without overload. The usual stuff...
2-1qt canteens (1 treating water, 1 drinking water),
small alcohol stove (homemade cuz I'm cheap, and I made it to fit inside of the mess kit),
minimal trauma/FAK,
heavy-duty "space-blanket" (not the thin mylar) to double as backup shelter,
LED headlamp (I now also carry the UV blacklight headlamp, message me if you're curious why),
2 MRE's and extra foil packages of tuna, ham or chicken,
homemade fire-starters carried in pocket (see thread on EDC tinder) and other parts of pack,
trail marking tape and floursecent (sp?) string,
pencil/paper, road map of the state I'm working in,
of course navigation tools such as compasses and a ruler,
signal mirror,
but most important 8oz of instant coffee..;~)
Please notice I did not mention brand names or types, because you do the best with what ya got. "Keep it r.e.a.l. and keep it s.i.m.p." is the motto I always teach. Train yourself in emergencies to "Realize Everything is Always Lost" when ya need it, so learn how to adapt and survive with just the "Stuff In My Pockets". REAL & SIMP ;~)