>>2777170>>2776564to chime in on this, insulation is just trapping air. best to do it with permeable material like natural fibres, or you get really sweaty really fast. that sweat cools on you and you are worse off in the long run.
animal skins with fur, especially sheep skins, are the warmest thing i have ever used. I have 5 Icelandic sheepskins sewn together which I use as my sleeping system in winter. they also make a comfy blanket or epic cloak.
