Joanna Griffiths Didn’t Make Better Underwear. She Rebuilt an Industry.
Category Failure, Diagnosed
For decades, women’s underwear operated on a contradiction. The product sat closest to the body, yet the category was built furthest from women’s needs.
Comfort was secondary. Function was hidden. Innovation stopped at aesthetics.
Leakproof underwear barely existed. Period care lived in the pharmacy aisle, separated from fashion and dignity. And women were expected to manage it quietly.
Joanna Griffiths, President & Founder of Knix, looked at that system and saw a market failure disguised as tradition.
The problem wasn’t demand.
It was design.
When an industry treats biology as a nuisance instead of a design constraint, it doesn’t innovate. It stalls.
The Strategic Bet
Griffiths didn’t start by making underwear prettier. She started by making it work.
She founded Knix in 2013 with a clear bet: underwear should be engineered for real bodies, real cycles, and real life. She introduced Knix with a single product: leakproof underwear. The brand initially entered the market through wholesale, securing HBC as its first major retail partner.
By 2016, she made a decisive shift, pulling Knix out of more than 700 retail locations across North America to double down on direct-to-consumer.
During the pandemic, Griffiths chose to scale aggressively and raise outside capital. Some investors questioned whether she could lead a high-growth company while pregnant. She declined capital from anyone who doubted her.
In March 2021, after turning down investors who questioned whether motherhood would impact her ability to lead, Griffiths secured a $53 million funding round — three days before giving birth to twin girls.
In 2022, Griffiths reached a defining moment when Knix was acquired by global health and hygiene company Essity for $410 million. The deal became the largest publicly disclosed private sale of a Canadian company founded by a solo female founder — a milestone that raised the benchmark for women-led consumer brands in the country.
Capital, Not Campaigns
Griffiths has built products around:
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Leakproof technology women could trust
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Wireless support without compromise
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Inclusive sizing and marketing that didn’t feel like an afterthought
Knix didn’t position itself as disruptive. It positioned itself as obvious.
The real risk wasn’t product.
It was challenging an industry that had normalized women managing around failure.
Knix scaled by treating underwear like a technical product, not a seasonal trend.
From the start, the business prioritized:
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Proprietary fabric and absorbency technology
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Direct-to-consumer margins and customer data
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Long-term repeat purchasing over trend cycles
The results followed.
Knix has reported annual revenues exceeding $100 million, built primarily through DTC before expanding into wholesale and owned retail. The company has raised approximately $50+ million USD across multiple rounds and reached a reported valuation north of $400 million USD.
That capital wasn’t used to chase volume.
It was used to control quality, storytelling, and customer trust.
Knix now operates:
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Dozens of branded retail stores across Canada and the US
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Wholesale partnerships with major retailers
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A category-defining position in period and leakproof underwear
This wasn’t marketing-led growth.
It was retention-led growth.
In apparel, that’s rare.
In intimates, it’s decisive.
Likely Next Chapter
Knix isn’t just an underwear company anymore. It’s a platform for functional apparel built around women’s biology.
The logical next moves are already visible:
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Expansion across life-stage needs: postpartum, menopause, pelvic health
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Deeper investment in proprietary materials and IP
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Broader apparel adjacencies where comfort and function intersect
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Continued category leadership as competitors follow its framework
Griffiths has also become one of the most visible advocates for women founders in Canada, influencing not just what gets built, but who gets funded.
The brand doesn’t need to explain its relevance.
The market already validated it.
The BFT Take
Griffiths didn’t succeed by reframing confidence or empowerment.
She succeeded by refusing to design around inconvenience.
She treated women’s bodies as a product requirement, not a problem to minimize. She built infrastructure where there was neglect. She scaled function until it became expectation.
That’s what Built For This actually looks like.
Not disruption for attention.
Redesign for permanence.
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