What if your period underwear could be beautiful, genuinely protective, and better for the planet all at once? The NIXI Body Polly Leakproof Knicker delivers exactly that. Four discreet layers of absorbent gusset that hold up to 25ml — the equivalent of 4-5 tampons — in a high-waist silhouette with pretty lace details that looks and feels like premium everyday underwear. Perfect for heavier periods, bladder leaks, discharge, and sweat during exercise. Washable, reusable, and genuinely better for you and the planet than disposable alternatives. Starting from just £22.00, this is the underwear upgrade that changes everything.
Who Is NIXI Body?
NIXI Body is a British brand on a mission to make leakproof underwear that women actually want to wear — not clinical, not compromise, but genuinely beautiful, comfortable, and effective. Founded on the belief that period and bladder leak protection should be discreet, sustainable, and confidence-giving rather than bulky and embarrassing, NIXI Body has built a loyal following among women who've made the switch from disposable pads and tampons and never looked back. The Polly is their hero product: a high-waist leakproof knicker with lace details and serious absorbency that proves you don't have to choose between protection and style.
What Makes The Polly Special?
- 💧 Holds up to 25ml — 4-5 tampons worth — the four layers of discreet absorbent gusset provide serious protection for heavier periods and bladder leaks. 25ml is the equivalent of 4-5 tampons — enough for overnight protection, heavy flow days, and extended wear without anxiety.
- 🧵 Four-layer absorbent gusset technology — the gusset combines a soft cotton lining, absorbent middle layers, and a waterproof TPU barrier to absorb, lock in, and prevent leaks from reaching clothing. Discreet, effective, and completely invisible under clothing.
- 🌹 Pretty lace details — looks like premium lingerie — the Polly is designed to look and feel like beautiful everyday underwear, not medical-grade protection. The lace details and high-waist silhouette make it something you're genuinely pleased to wear, not something you tolerate.
- 🔼 High waist for added comfort and coverage — the high-waist design provides added comfort, coverage, and security — particularly important for heavier flow days and overnight wear when you want maximum confidence.
- 🌙 Great for bedtime — the combination of high waist, wider gusset, and 25ml absorbency makes the Polly particularly well-suited for overnight wear, providing the protection and comfort needed for a full night's sleep without anxiety.
- ♻️ Washable and reusable — better for you and the planet — wash at 30º or 40º, air dry, and reuse. No more disposable pads or tampons contributing to landfill. A single pair of Polly knickers replaces hundreds of disposable products over its lifetime.
- 💪 Versatile protection — can replace or be worn alongside pads or tampons, providing leak-free protection for periods, bladder leaks, discharge, and sweat during exercise. One product, multiple uses.
Usage Cases — When Will You Wear The Polly?
🌙 1. Overnight Period Protection
The Polly's 25ml absorbency, high waist, and wider gusset make it the ideal overnight period solution. No more waking up anxious about leaks, no more sleeping in uncomfortable positions to protect your sheets, no more disposable overnight pads that feel bulky and uncomfortable. Wear the Polly to bed and sleep with complete confidence through even your heaviest nights. The high-waist design stays in place throughout the night, and the 25ml capacity handles even the heaviest overnight flow.
💼 2. Heavy Flow Days at Work or School
Heavy flow days at work or school are stressful enough without worrying about leaks. The Polly's 25ml absorbency provides enough protection for extended wear without needing to change, and the discreet four-layer gusset is completely invisible under clothing. Wear it alone on lighter days or alongside a tampon on heavier days for complete leak-free confidence throughout the working day.
🏋️ 3. Exercise, Sport & Active Lifestyle
Exercising during your period is challenging enough without worrying about leaks. The Polly's leakproof protection works during physical activity — running, yoga, gym sessions, swimming preparation, and any sport where movement and sweat are factors. The secure fit and waterproof TPU layer keep everything in place during exercise, and the breathable cotton lining keeps you comfortable throughout.
💧 4. Bladder Leak Confidence
Bladder leaks affect millions of women — during exercise, after pregnancy, during perimenopause, and at any life stage. The Polly's 25ml absorbency and discreet design provide genuine confidence for women managing light to moderate bladder leaks, without the bulk, discomfort, or embarrassment of conventional incontinence products. Wear it under any clothing with complete discretion.
🌱 5. Sustainable Period Management
For anyone committed to reducing their environmental impact, switching from disposable period products to reusable leakproof underwear is one of the most impactful changes you can make. The average woman uses over 11,000 disposable period products in her lifetime — all of which end up in landfill. A collection of Polly knickers replaces thousands of disposable products, reducing both environmental impact and long-term cost significantly. At £22 per pair, the Polly pays for itself within a few months of use.
Real-Life Usage Situations
- Emma, 31, heavy periods: "I've struggled with heavy periods for years and was spending a fortune on disposable products every month. A friend recommended NIXI Body Polly knickers and they've genuinely changed my life. The 25ml absorbency handles my heaviest days without anxiety, the high waist is comfortable and secure, and the lace details mean they look like normal underwear. I wear them overnight and on heavy days at work. At £22 they've already paid for themselves many times over in disposables I haven't bought."
- Sarah, 44, perimenopause: "Perimenopause brought unpredictable periods and occasional bladder leaks that I found really difficult to manage discreetly. The NIXI Body Polly knickers have been a revelation — they handle both period flow and bladder leaks in a single, beautiful pair of knickers that look nothing like a medical product. The confidence they give me is genuinely life-changing. At £22 they're exceptional value for what they deliver."
- Jess, 22, student and runner: "I run regularly and exercising during my period was always stressful. The NIXI Body Polly knickers have completely solved that — I wear them for runs and gym sessions during my period and the leakproof protection holds up perfectly during physical activity. The fact that they're reusable means I'm also saving money and reducing waste. At £22 they're one of the best purchases I've made."
Why Starting from £22 Is Outstanding Value
- Premium period underwear from brands like Modibodi, Thinx, or Wuka typically costs £28–£45+ per pair 💸
- Mid-range period underwear from brands like M&S or Marks & Spencer? Usually £20–£35 per pair — but often without the 25ml heavy absorbency, the lace details, or the NIXI Body quality and fit 🏷️
- Monthly spend on disposable pads and tampons? £5–£15 per month — adding up to £60–£180 per year that goes straight to landfill 😐
- At from £22 per pair, the NIXI Body Polly gives you 25ml absorbency (4-5 tampons), four-layer gusset technology, waterproof TPU barrier, pretty lace details, high-waist comfort, overnight protection, and washable reusable construction — a single pair that pays for itself within months and lasts for years ♻️
With 1,756 units in stock across sizes, find your size and make the switch today.
Protection You Can Trust. Style You'll Love. Planet You'll Thank.
The NIXI Body Polly Leakproof Knicker is available now at ALTOE from just £22.00. 25ml absorbency, four-layer gusset, waterproof TPU, pretty lace details, high waist, washable and reusable — the period underwear that changes everything.
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