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Irene's Secret

3-Pack Period-Proof Bikini Briefs – Leak Protection Cotton Briefs

3-Pack Period-Proof Bikini Briefs – Leak Protection Cotton Briefs

Regular price $17.08 USD
Regular price Sale price $17.08 USD
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Confidence, every day of the month. These leak-proof bikini briefs pair a soft breathable cotton-spandex jersey exterior with a black technical gusset that extends higher at the back for added security when you're sitting or lying down. The result is a period-proof everyday underwear that looks and feels like your favorite bikini — but works as a reliable backup for tampons, cups, and pads on heavy or light flow days.

Ideal for travel days, overnight, postpartum recovery, and the unpredictable days of your cycle. The flat-seam construction means no visible panty lines under leggings, yoga pants, or fitted dresses, so you can move through your day without a second thought.

The Details

  • 3-pack value — charcoal heather, solid grey, and pale blush (one for each phase)
  • Extended leak-protection gusset with a black technical interior lining
  • Breathable cotton-spandex jersey that stays soft wash after wash
  • Flat-seam construction — no visible panty lines under fitted outfits
  • Versatile bikini cut with high-cut leg and modern low-rise waist

Designed by experienced underwear specialists and quality-checked before shipping. 30-day hassle-free returns on all underwear. Secure checkout. Quality guaranteed.

Reliable Logistics Support: Receive Your Order in 3-14 DaysBrief Introduction

Enjoy reliable global shipping! Irene's Secret guarantees that your order will be safely delivered within 3 to 14 days. Track your package in real-time for peace of mind.

About Irene's Secret

Irene's Secret is a professional and trustworthy team dedicated to providing high-quality lingerie.

Return Policy

Return Acceptance
We accept returns for both defective and non-defective products. However, exchanges are not accepted.


Product Eligibility
Only new products are eligible for return.


Return Window
Customers have 14 days from the date of receipt to initiate a return.


Return Method and Fees
Return Method: Returns must be made by mail. A return label is included in the package free of charge.
Restocking Fee: There is no restocking fee.


Refund Processing Time
Refunds will be processed within 7 days after we receive the returned item.

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