A temperature around 20 degrees Fahrenheit prompted discussion about using heat packs, and where to use them. Experimental placement inside the dry-suit at the feet, and inside the pogies resulted from our discussions. The discussions also covered the mechanisms heat packs use to generate heat . As only the available packs utilized oxygen, essentially rusting to produce heat, would there be enough oxygen inside the dry-suit feet to produce heat?
I haven’t heard the results yet.