Top Picks: Leading Brands Revolutionizing Period Underwear

Period underwear has become increasingly popular for those seeking a comfortable and environmentally friendly alternative to traditional menstrual products. With advancements in fabric technology, these garments not only provide leak-proof protection but also offer a range of styles and sizes to suit different needs. Leading brands in this market have focused on sustainability without compromising on performance, ensuring that users can go about their day with confidence. To explore the top period underwear brands renowned for their innovation and reliability, continue reading below.

Illustration of period underwear

Best brands of period underwear in 2025

Knix

Knix, a Toronto-based company, is a leading producer of period underwear, having achieved a 70% growth in sales to $170 million in 2022. Acquired by Essity in September 2022 for $320 million, Knix has continued to grow by double-digits and now serves over 3 million customers. The brand is known for its expansive product line, including bras, underwear, and swimwear, with a focus on leakproof intimates that can hold up to 3-5 super tampons-worth of fluid. Knix's products are designed to be ubiquitous with regular underwear, aiming to replace traditional intimates with its innovative and comfortable designs. The company's growth strategy includes selective wholesale partnerships and significant investments in R&D to enhance its product offerings.

Thinx

Thinx, a pioneering brand in the period underwear market, has been a trailblazer since its launch in 2013, growing into a business worth nearly $100 million in revenue within eight years. Known for its on-trend cuts, strategic marketing, and corporate activism, Thinx has championed women's health issues and expanded the reusable period underwear category, now valued at $150 million globally. The brand offers a range of styles, including boy shorts and thongs, and has introduced innovative products like the LeakSafe period underwear with up to 12 hours of leakproof protection. Despite recent challenges, Thinx remains a market leader, leveraging its early mover advantage and extensive brand recognition to continue innovating in menstrual health and sustainability. With a projected market growth of 20.5% CAGR from 2024 to 2033, Thinx is poised to further dominate the period panties market.

Modibodi

Modibodi, an Australian-owned brand, is a leading producer of period underwear, known for its innovative, eco-friendly, and sustainable products. The brand has seen significant growth, with a global Period Panties industry CAGR of 12.7% from 2018 to 2022 and a forecasted CAGR of 17.4% from 2023 to 2030. Modibodi's products, designed with sewn-in gussets varying in size and absorbability, have captured a wide audience, including a successful expansion into the UK, France, and Germany. The brand's Renaissance collection marks its first foray into lingerie, targeting a younger demographic. Modibodi achieved $22.5M in new customer revenue within a year through a multi-channel marketing strategy.

Saalt

Saalt is a prominent brand in the period underwear market, known for its high-quality and eco-friendly products. The company has recently launched its Comfort Collection at over 400 Target stores and on the retailer's website, offering four styles and three absorbency levels in sizes XS to XXL. Saalt's period underwear is made from cellulose fiber from renewable beech wood, highlighting the brand's commitment to sustainability. The global period panties market, which includes Saalt, is expected to grow significantly, with a projected market size of USD 810.0 million by 2034 at a CAGR of 16.9% from 2024 to 2034. Notably, Saalt has also addressed concerns about PFAS, with recent tests showing no indications of these chemicals in their products.

Ruby Love

Ruby Love, formerly known as PantyProp, is a pioneering brand in the period apparel industry, offering high-quality, leak-proof period underwear with built-in absorbent layers that can absorb up to 2.5 tampons' worth of fluid. Founded in 2015, the company has seen significant growth, increasing sales from $300,000 in its first year to over $10 million by its third year. With $15 million in total funding, Ruby Love continues to innovate and expand its product line, which includes period underwear, swimwear, activewear, and loungewear. The brand's products are designed to be reusable, eco-friendly, and cost-effective, making them a popular choice in the menstrual health market. Ruby Love's commitment to comfort, protection, and sustainability has established it as a leader in the Femtech space. To learn more about their innovative products, visit the Ruby Love website.

Aisle

Aisle, formerly known as Lunapads, is a pioneering brand in the sustainable menstrual health and equity sector, operating since 1993. As a five-time B Corp Best for the World honoree, Aisle ranks among the highest period care B Corps globally, committed to creating size and gender-inclusive reusable period products. Their products are made from OEKO-TEX Standard 100 certified fabrics, ensuring they are free of harmful substances like PFAS. Aisle's innovative materials offer wicking, absorbent, and leakproof properties, enhancing comfort and reliability. The brand is dedicated to making periods more inclusive and sustainable, supporting initiatives to address period poverty. For more information, visit their website.

Proof

Proof is a leading brand in the period underwear market, renowned for its thoughtfully crafted and expertly engineered products. In 2022, Proof collaborated with Walmart to launch a more cost-effective collection, enhancing accessibility and convenience for consumers. The brand is part of a market projected to grow at a CAGR of 16.81% from 2024 to 2032, with the global period panties market expected to reach USD 420.77 million by 2032. Proof's products are known for their comfort and innovative design, contributing to the brand's strong presence in a market where online sales are expected to witness the fastest growth rate due to convenience and discreet shopping experiences. The brand's commitment to quality and customer satisfaction has made it a favorite among consumers seeking reliable and sustainable menstrual solutions.

Bambody

Bambody is a notable brand in the period underwear market, known for its affordable and sustainable products. Launched in 2018, Bambody specializes in bamboo-based period panties, offering leakproof and absorbent styles, with prices starting as low as $10.90. Their products are highly rated for comfort, with a 4.2 out of 5-star rating on Amazon, and are recommended for their value and environmental sustainability. Despite being a budget-friendly option, Bambody's products are designed to provide reliable protection, although they may show wear faster than more expensive brands. The brand's commitment to social and environmental sustainability adds to its appeal.

Dear Kate

Dear Kate is a prominent player in the period panties market, known for its innovative and comfortable menstrual underwear. The brand is part of a market that is expected to grow significantly, with the global period panties market projected to reach USD 810.0 million by 2034, growing at a CAGR of 16.9% from 2024 to 2034. Dear Kate, along with other key players like THINX and Knixwear, contributes to the market's expansion driven by increasing awareness of hygienic and eco-friendly menstrual products. The brand's products are popular for their comfort, washability, and cost-effectiveness, aligning with consumer trends that prioritize affordability and quality. As part of the market, Dear Kate benefits from the rising demand for sustainable menstrual solutions.

Lunapads

Lunapads, a leading brand in the period panties market, is renowned for its high-quality, eco-friendly menstrual underwear. As part of the broader market estimated to reach USD 810 million by 2034, Lunapads contributes significantly with its innovative products, such as absorbent and leak-proof designs, catering to diverse consumer needs. The brand is part of a market segment that grew at a CAGR of 13.6% from 2019 to 2023 and is expected to continue growing at a CAGR of 16.9% from 2024 to 2034. Lunapads, along with other key players like Thinx and Modibodi, accounts for approximately 15%-25% of the total market share. The brand's commitment to sustainability and comfort has made it a popular choice among consumers seeking reusable menstrual products. For more information, visit Lunapads' website.