📦 #1 Most Sold Period Underwear in [GEO_STATE] — Buy 2 Get 1 Free
The Bikini
The Bikini
Not just underwear. A 3-layer LeakProof™ system that replaces pads, liners, and tampons. Absorbs up to 6 super tampons worth of liquid while staying thinner than a panty liner. Protection you can trust, in underwear you’ll actually love wearing.
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Included with your order:
🛡️ 30-day risk-free guarantee
Your first pair is completely risk-free. Wear them, wash them, test them for 30 days. Not right for you? Full refund — no questions asked. We’re that confident.
Depending on the style, our underwear absorbs the equivalent of 3–6 super tampons (15–50ml). The High-Waist and Boyshorts offer maximum absorption for heavy flows and overnight wear.
Yes. Our 3-layer LeakProof™ system is engineered for all-day and all-night wear. For very heavy flows, we recommend changing every 8–10 hours.
Machine wash cold on a gentle cycle. Hang dry for best results. Do not use fabric softener, bleach, or dryer sheets — they clog the absorbent layers. With proper care, each pair lasts 5–7 years.
Not at all. Our absorbent core is less than 2mm thin — that’s thinner than a panty liner. No diaper effect, no visible lines under clothing.
Your first pair is completely risk-free for 30 days. Wear them, wash them, see how they work for your body. If they’re not right, we’ll refund your first pair — no questions asked.
Each pair replaces over 2,500 disposable products over its 5–7 year lifespan. Our fabrics are OEKO-TEX certified (no harmful chemicals) and our packaging is recyclable.
Trusted by 1.5M+ Women
3 layers. 2mm thin. Zero leaks.
Our patented 3-layer system was engineered to replace every disposable product in your life. A moisture-wicking top layer, an ultra-absorbent core, and a waterproof barrier — all in a fabric thinner than a panty liner.
REAL WOMEN. REAL FREEDOM.
Worn by 1.5M+ Women
Claire, 28
The High-Waist · Heavy flow
Lilly, 34
The Seamless · Daily wear
Angelina, 41
The Lace · Medium flow
Marie, 26
The Boyshorts · Overnight
Charlotte, 31
The Bikini · Light flow
Sophie, 38
The Tanga · All flows
How does it work?
Our patented LeakProof™ technology uses 3 ultra-thin layers that work together — all in less than 2mm of fabric. Thinner than a panty liner, more absorbent than 6 tampons.
Real numbers.
Why Blinx?
| Blinx | Other Brands | |
|---|---|---|
| Patented 3-layer LeakProof™ technology | ||
| Less than 2mm thin — invisible under any outfit | ||
| 12h protection — day AND night | ||
| OEKO-TEX certified — zero harmful chemicals | ||
| Lasts 5–7 years — replaces 2,500+ disposables |
Engineered for confidence.
Every layer has a job. None of them is “feel like a diaper.” OEKO-TEX Standard 100 certified — tested for 100+ harmful substances.
Frequently Asked Questions
We recommend ordering your normal underwear size. Our sizing runs XS–2XL. If you’re between sizes, size up for a more comfortable fit. The fabric has some stretch.
Absolutely. Many of our customers wear Blinx for light bladder leaks (stress incontinence), postpartum recovery, and everyday discharge — not just periods.
We recommend at least 3 pairs for a full cycle rotation (wear, wash, dry). A 6-pack gives you a full week of coverage with room to spare. Most customers start with a 3-pack and come back for more.
Our absorbent core neutralizes odor on contact. Customers consistently report zero odor even after 10+ hours of wear. The antimicrobial treatment keeps bacteria at bay.
The High-Waist and Boyshorts offer maximum absorption (up to 50ml / 6 super tampons). They have the widest gusset and highest coverage. For overnight, we especially recommend the Boyshorts.
Yes! Many parents buy Blinx for their daughters’ first periods. They’re easier and less intimidating than tampons, more comfortable than pads, and our XS fits most teens.
Hang drying takes 12–24 hours depending on humidity. For faster drying, lay flat on a towel. Do not tumble dry — heat damages the waterproof layer.
Currently we ship free within the US. International shipping is coming soon. Sign up for our newsletter to be the first to know.
Better in Bundles.
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Free US ShippingFast, free delivery on every order
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30-Day Risk-FreeWear, wash, test. Full refund if not satisfied.
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Save $600+ Over 5 YearsOne pair replaces 2,500+ disposable products
