I also wonder how well this flow idea works...
We don't expect much heat to flow through the insulation on top of us or we would get cold. If we expect the 3 or however many inches of insulation on top of us to severely restrict heat flow and keep us warm, how much heat do we expect to flow 8, 15, 22 inches down our legs?
The only difference I can see is that the insulation on top of us is capped by a nylon shell and the insulation running down the baffles is not.. Well, there are the flow gates..
By 'extremity', I figure they mean legs. My arms stay in the torso touching zone.
Anyway,I am not sure I buy this reason for this type of baffle.
All this talk of flow has a Jack Johnson song stuck in my head