FEMALE ENGINEERING + MAMMUT LAUNCH PERIOD PANTY: PERFORMANCE UNDERWEAR FOR WOMEN IN MOTION

Seon, Switzerland / Gothenburg, Sweden | Mammut, the Swiss outdoor brand renowned for alpine performance and innovation, announces a new collaboration with Female Engineering, the femtech brand by Lindex, dedicated to improving women’s everyday lives through science-led innovation and solutions designed to meet real needs. Together, the two brands introduce the Female Engineering + Mammut Period Panty, designed specifically for women who move, train, and explore on any day of their cycle.

June 16, 2026

Mammut + Female Engineering are bringing femtech innovation into outdoor apparel | © Mammut Sports Group

Developed to meet the demands of an active lifestyle, the period panty is built on Female Engineering’s specialist expertise in science-driven innovation for women, combined with Mammut’s strong heritage in performance and outdoor exploration. The result is a secure, breathable, and low‑bulk period panty, available in both high and low absorbency variants, designed to support movement across outdoor activities such as hiking, climbing, trail running and skiing without compromising comfort or confidence. Field-tested and trusted by Mammut’s female athletes, the product reflects both brands’ expertise in meeting the highest standards of performance and reliability.

“Periods are part of everyday life for half the population, yet performance apparel has rarely accounted for them,” says Paul Cosgrove, Chief Product Officer at Mammut. “With Female Engineering, we saw an opportunity to apply their innovation and technology to a real and often overlooked performance need among our consumers. The period panty is about removing friction—physically and mentally.”

The Female Engineering + Mammut Period Panty is built for exertion. The body-hugging silhouette remains invisible under tights and provides a secure fit and stability under harnesses and backpacks, while carefully engineered absorbent layers manage flow, moisture, and odor during high‑energy activity. Every detail reflects one shared belief: Women should never feel limited in the outdoors because of their period.

“At Female Engineering, we are on a mission: to make everyday life for women better by finding solutions to real needs. With Mammut, we bring our femtech innovation and science into outdoor environments—enabling period protection designed for movement, high-performance environments, and adventures, without compromise”, says Ebba Lo, Innovation & Business Manager, Female Engineering at Lindex.

The collaboration reflects Mammut’s ongoing commitment to designing for women with purpose and integrity, while reinforcing Female Engineering’s mission to normalize and elevate period solutions through innovation, science, and design.

“The outdoors should be accessible on your own terms. The period panty is about choice, comfort, and respect—so every woman can decide how she wants to experience movement outside, including during her period.” says Katja Müller, Head of Design at Mammut.

The Mammut + Female Engineering Period Panty will be available online and in selected Mammut stores from June 16.

➡️ Discover the Female Engineering + Mammut Period Panty, medium absorbency

➡️ Discover the Female Engineering + Mammut Period Panty, high absorbency

About Female Engineering
Female Engineering® is a Swedish femtech brand by Lindex, where over 70 years of experience in underwear and knowledge about the female body meet new technology. The products are developed in collaboration between Lindex’s underwear experts, scientists, and pioneering partners. Lindex is one of Europe's leading fashion companies, with approximately 430 stores in 17 markets and global online sales through third-party partnerships.
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