The Collaborative International Dictionary of English v.0.48:
Aertex \Aertex\ n. 1. a trademark for a loosely woven cotton fabric that is used to make shirts and underwear. [WordNet 1.5]WordNet (r) 3.0 (2006):
Aertex n 1: a trademark for a loosely woven cotton fabric that is used to make shirts and underwear