Leak-Proof Panties: Your Secret Weapon
PFAS-free, third-party tested, and built in three hold levels — real protection without the chemicals some leak-proof fabrics rely on.
Worrying about leaks ruining an outfit or interrupting your day is a genuinely common source of stress — and it's largely solvable with the right underwear. Leak-proof panties build absorbent protection directly into the garment, which means less reliance on disposable products and one less thing to plan around.
Here's how to care for them, how to pick the right hold level, and why the fabric itself matters more than most people realize.
PFAS-Free, Third-Party Tested
Some leak-proof and odor-resistant fabrics on the market use PFAS ("forever chemicals") or silver-based antimicrobial treatments — both of which have raised health and environmental concerns in recent years. Rhonda Shear's leak-proof panties are PFAS-free and silver-free, third-party tested to confirm it. This is a real trust signal, not just marketing language: it's a specific, verifiable claim about what's not in the fabric against your skin.
Getting the Most From Your Leak-Proof Panties
Leakproof Boyshorts — Super Hold
- Super hold absorbency for maximum protection
- PFAS-free and silver-free, third-party tested
- Full-coverage boyshort fit
Bamboo Leakproof Brief — Heavy Hold
- Heavy hold absorbency covers most period days
- Soft bamboo fabric, high-waist coverage
- PFAS-free and silver-free, third-party tested
Lace Trim Leakproof Bikini — Moderate Hold
- Moderate hold for light days and daily wear
- Lace trim and sheer side panels
- PFAS-free and silver-free, third-party tested
PFAS-free · Silver-free · Third-party tested · From $16
Confidence, Built In
PFAS-free protection in three hold levels. Free shipping on orders $85+.
Shop Leak-Proof Panties →XS–3X · Size chart →
Leak-Proof Panty Questions
Rinse in cold water first to remove any residue, then machine wash cold with your regular laundry and hang or tumble dry on low. Avoid fabric softener, which can coat and break down the absorbent layer over time.
Yes — Rhonda Shear's leak-proof panties are PFAS-free and silver-free, third-party tested. This matters because some leak-proof and odor-resistant fabrics on the market use PFAS or silver-based treatments, which have raised health and environmental concerns.
Hold level refers to how much liquid the absorbent layer can handle before you'd need a backup. Moderate hold suits light days or daily confidence, heavy hold covers a typical period day, and super hold is built for the heaviest days or extended wear between changes.
Yes — many people wear them specifically for exercise, since the absorbent layer provides backup protection during sweat and movement, not just menstrual flow.
