and----at some point your kit turns into the EDC..
and--not feeling too safe with just a EDC, your pockets
turn into a "kit"..which is lumpy so you put the stuff
in a pouch..which gets left on the dresser to many times
so parts of the kit get emptyed into the catch-all in the dresser
where the keys and coins go..and after a few years of
not needing anything but keys and a wallet everything
gets left behind untill you read about the guy trapped
in his car--office--bathroom--so you make up a new EDC.
which turns into a kit......

That pack is pretty cool.

How much weight is too much ? It seems to me that if you were wearing just swim shorts and sandals a small belt pack/pouch and a canteen wouldn't be too much to carry .
IMO it would be worth a little discomfort to carry a few extra things [ especially water and purifiers ] in a potentially very dangerous place like the Amazon jungle.
I personaly would NEVER go hiking anywear unless I was wearing some decent hiking boots/shoes no matter how hot it was . IMO wearing sandals was just asking for trouble .

That raises the question of where he was wearing just swim trunks and sandals, around the safety of the jungle lodge or in the jungle itself? Wilderness or swimming pool?

My thoughts...

My first one is you need pants (or shorts, if you insist) with pockets and a belt. No offense.

But as far as something on the neck... Why the SwissChamp? Is it becuase you had it around, or do you like the tool combo? It is a good sized SAK, maybe a smaller one like the Huntsman might do the trick, maybe with a small pair of hemostats to replace the very light pliers in the SwissChamp. Combo that with a small capsule, something bigger than a pill vial but maybe not something as pricey as the TAD Life Capsule. (Short cigar tube with a wire-and-tape loop on it?) Sparklite, a couple of tinder tabs, a needle, a couple hooks, a compass and bobbin of specta line or kevlar thread. You carry that WITH a PSK, so if you strip down for some reason you've still got most of you basics covered.

"...in the jungle itself?..."

My jungle experience is limited to Panama, but in those jungles, no shirt would equal being eaten alive by bugs, plus lotsa cuts and scratches. Shorts/swim trunks are bad too, same reason...

A victim of 50's and 60's movies about the jungles of south and central america. I was so looking forward to my first time in the rainforests of central america. My excitement it lasted about 10 minutes. Never again will I voluntarily enter a jungle, I hate bugs!!!!!

"...Never again will I voluntarily enter a jungle..."

Me either. Chances are, my Uncle Sammy won't make me do it again...

The future of PSK cases?

http://www.brasscompass.com/cigarsingleflask3.jpg

there are advantages to getting old and fat.