Leakproof Brief - Medium 🩸🩸

1,445.00 ฿

1,700.00 ฿

A classic brief to become a staple in your undie drawer! Proof’s basic leakproof brief offers full coverage that flatters all body types.

The Brief can replace 2-3 regular pads and hold up to 6 teaspoons of fluids. These undies will draw moisture away from your body with Proof’s patented, multi-layer Leak-Loc™ system, while still feeling like your favorite panty. They are slim and highly absorbent to protect you from leaks, day or night.

Absorbency: Medium (Holds up to 2-3 Regular Pads or 6 Teaspoons / 30 ml)

Great for:

Medium flow periods

Light bladder leaks

Replace a pad or back up a tampon or menstrual cup

Sweat

Odor reduction

Runs slightly large. If you’re in between sizes, we advise sizing down.

Materials:
- Outer: 75% Nylon 25% Spandex
- Lining: 100% Polyester
- Lining: 69% Cotton 25% Polyester 6% Acrylate
Certified safe for human health according to
STANDARD 100 by OEKO-TEX®️OEKO-TEX® is an independent institute in Europe and Japan that tests textiles for harm to human and environmental health. Proof’s underwear has been successfully tested for harmful substances (PFOA/PFAS, lead, phthalates, etc.) and certified according to STANDARD 100 label, and therefore is deemed harmless for human health.
Wash cold on a delicate cycle with mild detergent. Hang or lay flat to dry. Check out Period Underwear 101 for tips and tricks.

Size:

XS S M L

Color:Wine

Variant

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Frequently Asked Questions

Are period underwear reusable?

Yes! They are machine-washable and reusable, so you can use them again and again. Proof’s period underwear lasts at maximum tech performance for industry standard of 40 washes or approximately 2 years if cared for properly.

Will the leakproof underwear smell?

Proof's leak-proof undies are equipped with moisture-wicking lining and antimicrobial fibers that inhibit the growth of bacteria and reduce odor. If you want to refresh your undies, simply add a few drops of vinegar or tea tree oil to your washing machine during the rinse cycle and complete washing as normal.

Can the Leakproof Brief replace pads or tampons?

Yes, the Brief can replace up to 3 regular pads and can be worn for up to 12 hours. You’ll be leak-free and confident, while helping to keep single-use plastic products out of landfills and oceans.

How long can I wear the leakproof Brief for?

The Brief absorbs up to 2 regular pads’ worth of liquid (30ml). If you have a light to moderate flow, the Brief will handle your flow for an entire day - or night. We recommend wearing a pair of Proof in the right absorbency level for 12 hours, and then changing like you typically would after a shower, after getting up in the morning, or before going to bed in the evening.

What type of leaks is the Brief good for?

The leakproof brief is perfect for moderate periods, light bladder leaks, sweat, spotting, discharge, and everyday wear. You’ll love it for replacing pads and pantyliners, and to replace or back up tampons and cups.