I am trying to get to grips with understanding how to guage various insulating materials temp ratings. Of course when the body is working that can be a real issue but i am more concerned about rest/sleep.
To that end i have some experience with down…but assuming i would like to compare pirmaloft or similar such insulation to down – is there a rule of thumb conversion (e.g. XXgsm PL = yyInch of ZZ fpdown)
Mike
