A husband's homemade bandage, a college dropout's breakthrough adhesive, and a factory worker's wartime fix transform simple strips of tape into indispensable American icons — creating a $90 billion industry, one sticky invention at a time.

P.H. Hanes sparks a revolution in American underwear, but rivals answer with breakthrough designs, bold branding, and a wartime windfall—transforming an unmentionable necessity into a $100 billion global industry.