When crafting common bracers, selecting a different material does not update the product window above the material in the crafting window. Material properties do not seem to affect outcome of crafted armor- in terms of insulation:
EXAMPLE BELOW:
Selecting Linen Weave to craft common bracers results in +3 heat and +1 Cold insulation.
Selecting Rabbit Wool, - tooltip for the material says " Cold insulation 3 Heat Insulation -2 Magical armor 8 Luck +30.
Resultant Common Bracers description in the craft window does not update with the stats from the rabbit wool. You actually have to craft it to see the difference..
Actual Crafting: Common Bracers:
Linen:
Material Properties:
Physical Amor +8
Armor encumbrance 2%
Armor Data:
Physical Armor +16
Magical Armor +20
Heat Insulation +3
Cold Insulation +1
Rabbit Fur
Material Properties:
Cold Insulation 3
Heat Insulation -2
Magical Armor 8
Luck +30
Armor Data:
Physical Armor +16
Magical Armor +20
Heat Insulation +3
Cold Insulation +1
Conclusion: Choosing a different material with thermodynamic properties has no effect on the insulation rating of the crafted item.
Unknown if this is seen across all items.. or just commoner items, or just commoner bracers.