Leakproof Essential High-Rise Brief

Regular price $35 Sale price$29 Save $6

Buy 3+ and save 20%

Leakproof Essential High-Rise Brief Period Underwear | Heavy

Regular price $35 Sale price$29 Save $6

Buy 3+ and save 20%

The BEST coverage for heavy flows
HSA/FSA Approved

heavy AbsorbencyHolds up to 4 regular tampons


HSA/FSA Approved

Free shipping on orders $50+

60 Day Money-Back Guarantee

Absorbent Core

Extended Protection

Machine Washable

Our Leakproof Essential High-Rise Period Brief offers a high-rise fit with full back coverage and soft fabric for outstanding comfort. Smooth, seamless edges give a sleek look under clothing and multi-way stretch fabric moves with your body. Crafted with our patented Leak-Loc® absorbent core technology that helps you feel dry and confident, especially on those heavy flow days. It's simple—make the switch.
  • Heavy periods
  • Moderate bladder leaks
  • Pad alternative
  • Alternative/back up a tampon or cup
  • Discharge
  • Sweat
  • Fights odor

Outer: 75% Nylon, 25% Spandex
Top Lining: 100% Polyester
Interlining: 70% Polyester, 30% Cotton
Bottom Lining: 100% Polyester


Reusable & Machine Washable:
When you're done wearing, simply wash with cold water and gentle detergent, then hang or lay flat to dry.

Absorbent Zone: Regular
Center lining protection
Multi-layer leakproof absorbent core
Leak-Loc® bonded edge technology

  • Moisture-wicking top layer
  • Absorbent core
  • Waterproof liner
  • Water-resistant outer fabric

Add More Styles To Make A Bundle

Leakproof Period

Mesh Hipster


Leakproof Period




Proof’s Essential High Waisted Brief is super comfortable, made with our smooth and soft fabric and all around supportive high waist style, but is also perfect for that heavy flow protection you need! Each pair has our signature multi-layer core with Leak-Loc ® technology which absorbs up to 4 regular tampons or 8 teaspoons. It is a go-to for that perfect night’s sleep. These undies offer superior comfort and coverage for heavy flows and are best for use as a replacement or back up to pads, tampons and cups.

Our Proof Essentials Brief comes in bucket sizing giving you the size flexibility and confidence you need for THAT time of the month - hello comfort! The essentials high waist brief offers a heavier absorbency making it the ideal pair for heavier periods, sleeping and on the go protection. For more guidance, check out our absorbency chart and size guide.

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