Would it be possible to rework how heat and cold is implemented so that you can have armor that both protects against cold and heat extremes, this was for example successfully implemented in the game "ark survival evolved" and would make the "simulation" both be more practical and more realistic as for example some types of materials like metal transfers both heat and cold so much they would have a very bad insulation and would make both extreme cold and extreme heat a lot worse if insulated with some other materials on the inside, so lets say you have cloth armor that protects against both heat -1 and cold by +1 etc
and then a regular iron armor that does the opposite but for example, then you cold have fur that have only protects against the cold (cold -90%) and have a +1 in heat.

Let me know if this could work or if someone else thinks the same.