Inventor: Miki Agrawal, Radha Agrawal and Antonia Dunbar
Country: United States
Cost: From $32
Trivia: Former CEO Miki Agrawal left the company after being accused of sexual harassment.
Bottom line: Yes, underwear can be life-changing.
After decades of only bulky, costly pads, tampons and liners to avoid leaks and stains during menstruation, women were introduced to Thinx, a line of "period-proof" thongs and panties.
Co-founded by twin sisters Miki and Radha Agrawal and Antonia Dunbar, the entire range is washable, reusable and equipped with four layers of moisture-wicking, antimicrobial fabric.