Period underwear replaces or backs up disposable products with washable, absorbent garments. Knix, Thinx, Modibodi, OOIA, Pantys, Saalt, Aisle and Bambody are in this category, selling to women who want comfort, sustainability and savings. Their ads show how brands handle a topic that was once taboo, explain a new product habit, and use fit, sizing and leak-proof demonstrations to win people who are used to pads and tampons.
Aisle was founded in Vancouver in 1993 by Suzanne Siemens and Madeleine Shaw, making it the original reusable period care brand—three decades before sustainability became a mainstream brand attribute. A founding Canadian B Corp, Aisle was acquired by Somedays in an intergenerational femtech deal.
Bambody is a Canadian period underwear brand offering affordable bamboo-blend, PFAS-free, OEKO-TEX certified styles at price points significantly below premium competitors. Its Amazon-first distribution strategy captured budget-conscious buyers looking to transition from disposable period products.
Carmesi is an Indian women's personal care brand selling menstrual and intimate hygiene products including sanitary pads and period care items. The brand sells online across India, advertising across Meta placements.
Knix is a Toronto-based DTC underwear brand founded in 2013 by Joanna Griffiths. It pioneered leak-proof and period underwear for women in inclusive sizing, building growth through an ambassador micro-influencer community model that turns real customers into brand advocates across all body types.
Modibodi was founded in 2013 in Sydney by Kristy Chong, who developed the concept while training for a marathon and experiencing incontinence. The brand's patent-pending Modifier Technology created the absorbent-fabric underwear category. Essity (the Swedish hygiene company) acquired Modibodi for A$140M in 2022.
OOIA (formerly Ooshi) is a Berlin DTC period and leak-proof underwear brand founded in 2018 by Dr. Kati Ernst and Kristine Zeller, two mothers committed to female empowerment. Germany's market leader in period underwear with 2M+ units sold and 500K+ customers, the brand is entirely self-financed and operates pure DTC at ooia.de. Also searched as OOIA.
Founded in 2017 by Emily Ewell and Maria Eduarda Camargo, Pantys is Latin America's first menstrual underwear brand. A certified B Corp and the first lingerie brand globally to launch carbon labels on all products, Pantys combines femtech innovation with a mission to end period poverty through reusable period care.
Saalt is a Boise-based reusable period care brand founded by Cherie Hoeger in 2018. A certified B Corp, the brand makes medical-grade silicone menstrual cups and period underwear, using education-first content to normalize reusable period care among mainstream US consumers.
Thinx was founded in 2013 by Miki Agrawal, Radha Agrawal, and Antonia Dunbar. Its 2015 NYC subway ad campaign—initially rejected by the MTA for showing period imagery—sparked a national conversation about menstrual stigma and positioned Thinx as the category-defining DTC brand for period underwear.
Education comes first. Many buyers have never worn absorbent underwear, so ads explain how it works, how many layers it has and how to wash it. Demonstrations are central: liquid poured onto fabric, close-ups of layers, or someone moving through a day without worry. Positioning varies. Thinx built its name on challenging period stigma. Knix leans on comfort and inclusive sizing across body types. Modibodi extends the story to light incontinence. OOIA and Pantys connect to regional audiences and sustainability. Saalt, Aisle and Bambody emphasize reusable savings and lower waste. Creative leans toward real bodies, direct language and relatable scenarios, rather than coy imagery. Formats include customer testimonials, try-on videos, comparison charts versus disposables and educational carousels. Offers often include multipacks, sizing guides and return policies, because fit is the main risk for first-time buyers.
Watch how directly each brand speaks about periods. Platform policies and audience comfort both shape language, and brands choose different levels of candor. Note the words and visuals they use. Compare how they answer the big objections: will it leak, is it hygienic, how do I wash it, is it worth the cost. The strongest ads address one objection per creative. Check who appears on screen. Age range, body type and context, such as sport, work or sleep, show the target segment. Knix and Modibodi speak to different life stages than a brand aimed at teens or first-time users. Finally, save the long-running ads and sort by hook type: education, demo, testimonial, social cause. That makes it easy to see which angles dominate and where whitespace remains, for example sleep protection or postpartum use.
They educate first, with demos of absorbency, layer close-ups and washing guidance. Testimonials and try-on videos reduce fit worries, while brands like Thinx and Knix add stigma-breaking or inclusivity messaging. Filter by date, country and format in AdLibrary to see which creative has stayed in rotation, then save the strongest examples to compare hooks, proof and offers.
Knix, Thinx, Modibodi, OOIA, Pantys, Saalt, Aisle and Bambody are included, covering North America, Europe, Australia and Latin America. Open any brand page to see its ads, then compare hooks, formats and offers side by side to see how each brand positions itself against the others in the category.
Common hooks address leaks, comfort, sustainability and cost versus disposables. General best practice is to answer one objection per ad and show the product in use. Reviewing competitors' long-running ads reveals which hooks stay in rotation. Filter by date, country and format in AdLibrary to see which creative has stayed in rotation, then save the strongest examples to compare hooks, proof and offers.
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