It seems that scientists at Lawrence Livermore National Laboratory (LLNL) have devised a type of fabric that utilizes nano-tech to protect the wearer from both biological and chemical weapons.
Using carbon nanotubes, the material basically functions as a "second skin" for the person wearing it. The surface of is modified with a "functional layer" that changes in response to what is in the atmosphere around it. The tubules are so small that bio agents can't even get in them and the functional layer can even reduce the size more to prevent chemical agents that are smaller than the biological ones.
Cool enough? Sure, but then there's the second part of this. The material, after exposure, can then "shed" like real skin to be able to breathe & react again. Hence the "snakeskin" moniker.
If you want the full article, head over to Foxnews.com & have a look. Author Allison Barrie did a great job on the article.