# Thinx > Thinx is an American brand that manufactures absorbent apparel, primarily specializing in menstrual products. Founded in 2013, the company pioneered the 'period-proof underwear' category, designed to replace or supplement traditional products like pads and tampons. Thinx operates as a subsidiary of the personal care giant Kimberly-Clark. - URL: https://optimly.ai/brand/thinx - Slug: thinx - BAI Score: 88/100 - Archetype: Challenger - Category: Consumer Goods - Last Analyzed: April 10, 2026 ## Competitors - Knix (https://optimly.ai/brand/knix) - Modibodi (https://optimly.ai/brand/modibodi) ## Also Referenced By - Bambody PTY LTD (https://optimly.ai/brand/bambody-pty-ltd) - Bambody (https://optimly.ai/brand/bambody) ## Buyer Intent Signals Problems: Disposable Menstrual Products: Using traditional pads or tampons that require frequent changing and disposal. | Menstrual Cups/Discs: Using reusable silicone cups or discs that require boiling and manual insertion. Solutions: best period underwear for heavy flow | how does period underwear work | PFAS free period underwear brands | period underwear for teens | reusable menstrual products reviews | Standard Underwear + Liners: Repurposing standard underwear with liners or simply accepting the risk of leaks during light days.