I've come up with an idea for a Flat Pack.
Breathability is key because my camera needs to breath inside the pack. If condensation builds up inside the pack, it will destroy my camera and iPhone.
My thinking is that Quantum Endurance dries super quick. So I could create a flat pack, 22" by 14"; with four equal length pieces of Endurance; a hydration panel, main pocket and an exterior pocket; all three pockets would be equal sizes and made of Endurance.
The hydration sleeve is for drying wet cloths, since that pocket will heat up with body heat, against my back. The exterior pocket would be for my tarp, since it isn't essential that the tarp get dry. The main pocket would have my dry cloths and electronics in it.
My question is really about waterproof Quantum Shield. Is Shield so water proof that my gear wont dry inside? Should I make the pack out of Shield because it will breath just fine?
Should I use Endurance, since rain will need to penetrate two layers of Endurance before the moisture gets my gear wet?
Should I use Shield on the exterior since it's waterproof, but Endurance on the hydration sleeve, against my back, since it breaths and dries quicker? etc…
Any comments?

