NIXI Body

NIXI Body creates sleek, leak-proof underwear designed to keep women moving with confidence through menstruation, motherhood, and menopause. Founded by mum of two Kelly after her own experience with bladder leaks and early menopause, NIXI blends performance, comfort, and style so you can stay active without worrying about VPL, bulk, or unwanted leaks.

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NIXI Body – Leak-Proof Underwear for Life in Motion

NIXI Underwear began life as BP3 in 2019, when Kelly grew tired of little bladder leaks cutting her hockey matches short and found every product on the market bulky, unflattering, or uncomfortable. Determined to create something better, she designed her first pair of sleek, absorbent knickers that looked great under gym leggings and made her feel amazing — with no compromise on protection. She soon realised these knickers didn’t just support bladder leaks, they also offered a more sustainable, plastic-free alternative to traditional period products.

In 2020, period activist Coni Longden-Jefferson joined as co-founder, helping to expand the brand’s period offering and amplify its mission. By 2022, BP3 evolved into NIXI Body — same trusted knickers and close-knit team, with a fresh new name inspired by Greek goddesses who support women through all stages of reproductive health. Today, NIXI is dedicated to keeping women moving confidently through every chapter — from first periods to postnatal recovery to menopause — with stylish, functional, and planet-friendlier leak-proof underwear now stocked in sports and eco stores across the UK and beyond.