• Leakproof Thong
  • Leakproof Thong
  • Leakproof Thong
  • Leakproof Thong

Leakproof Thong

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Proofs breathable, buttery soft microfiber in a low-rise silhouette lets you eliminate panty lines while having a backup for your leaks. Minimal coverage that still includes Proofs multi-layer Leak-Loc™ system.


Holds 1 Regular Tampons or 2 Teaspoons


Great for
✨panty liner replacement
✨light period leaks
✨odor reduction

Regular Lining

The Thong features an invisible leakproof core in the gusset. You’ll be comfortable and protected with our soft and slim multi-layer core.

Fabric & Care

All Proof undies offer strong protection, but should be washed gently. Machine wash on gentle using cold water and gentle detergent, and hang or lay flat to dry.


Outer: 75% Nylon 25% Spandex
Lining: 100% Polyester
Lining: 69% Cotton 25% Polyester 6% Acrylate