Australia’s cult underwear brand Step One has built a reputation for comfort and clever design, and now it’s turning that same innovation toward a new challenge: rethinking period protection. The brand’s latest release, Step One Period Underwear, promises something women have long been waiting for, real protection that feels just like their favourite Step One pair.
Traditional period underwear has often meant choosing between comfort and performance, but Step One’s design changes that completely. Made from breathable viscose derived from bamboo, this new range introduces a two-layer absorbent core that eliminates the bulk of traditional multi-layer designs. By integrating absorbency and waterproofing into a single knit layer, Step One has created period underwear that’s thinner, faster-drying, and more breathable, without compromising reliability.
The science behind it is as smart as it sounds. The top layer uses naturally hygienic wool jersey to wick moisture, regulate temperature, and control odour. Beneath that, an absorbent core knit with a Leak-Lock barrier draws fluid in and locks it away, keeping the outer layer, a durable bamboo shell, soft, dry, and familiar in fit. The result is protection that feels effortless, not engineered.
The range includes three thoughtfully designed styles. The Period Thong offers a barely-there option for light-flow days or spotting. The Period Bikini Brief is the everyday go-to, slim and supportive, perfect for work, weekends, and workouts. And for heavier days or overnight protection, the Period Full Brief extends the absorbent panel further for extra coverage, still lightweight, still comfortable, and still unmistakably Step One.
With its sleek construction and smart materials, Step One has done what it does best: taken an everyday essential and made it better. This innovation is designed for women who expect more from what they wear.
The new Step One Period Underwear range is available now at stepone.life.
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