Here is an interesting article that I want to read later: Yarn Conditioning Process : An Overview.
Hosiery enthusiasts are so accustomed to saying that nylon and spandex do not absorb moisture, but that seems to be untrue. It can absorb even the humidity in the air, which impacts yarn quality.
That does not mean that it can absorb enough moisture to cause problems with germs, but it is still worth looking into.
Thank you for reading!