In this Episode (026) of the Elk Talk Podcast, John Barklow discusses outer layers, including science and how that drives technology.  Hunting elk brings all sorts of bad weather conditions.  John explains how the proper outer layer is your protection against those elements.  Topics covered include membranes, evaporation rates, humidity equilibrium, heat loss from wind and evaporation, DWR surfaces, weight from moisture absorption, seams and leakage, breathable rain gear, and a lot of shop talk about designing and building high performance outer layers.

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