What does SuperSoft mean? July 14, 2020 23:48 Updated They’re ridiculously soft fabrics that feel like a hug and are engineered with the highest quality yarns. Related articles What is FIONx? What does FIONdry mean? What does FIONtherma mean? Can the FIONe.a.c. collection be ironed? What’s the difference between FIONx and FIONe.a.c.?