nanopants
n.pl.— «Nanotechnology is simply the most recent attempt to manipulate the basic building blocks of matter. So far, it has succeeded best in the clothing industry with the manufacture of stain-repellent material. Consumers can buy “nanopants,” as the industry calls them, from Eddie Bauer, Gap, and Brooks Brothers.» —“Small science” by Lynde Langdon in St. Louis World Magazine Mar. 4, 2006. (source: Double-Tongued Dictionary)