Imagine getting a fursuit for over another fursuit, your visibility would be nothing and basically have no feeling of the outside world. Would imagine you probably couldn't breath easily either.

Though i guess if you started with a more slim style suit might make it easier for heat wise.

Now i have seen "petsuits" from a certain site getting more popular, technically they a fursuit version now, so hypothetically could just layer a few of those on top of each other. I mean that is the way stay warm right.

Now that just piqued my scientific side of things. How many layers would be need to remain warm in X degrees below zero. And i guess diminishing returns as for each layer. Add the hand and feet options to each of those "petsuits" for more warmth.

Sorry if i am just rambling here, but this muse just want to come out..