Leakproof Invisible Cotton No-Show Brief

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New Innovation

Leakproof Invisible Cotton No-Show Brief

$32.00 USD

Buy 3+ Save 15%, Buy 5+ Save 20%

Soft cotton-blend fabric

Invisible under clothes

Moderate leakproof protection

High-rise, full coverage

New Innovation

Leakproof Invisible Cotton No-Show Brief

$32.00 USD

Buy 3+ Save 15%, Buy 5+ Save 20%

Soft cotton-blend fabric

Invisible under clothes

Moderate leakproof protection

High-rise, full coverage

Absorbency: Moderate

Size:

True to Size

•

Free Shipping on orders $100+

First Pair Risk Free for 30 Days

Rewards Members Earn 32 Points

Product Description

Introducing our softest cotton-blend underwear, upgraded with invisible seam construction and built-in leakproof protection. The Leakproof Invisible Cotton No-Show Brief features a comfortable high rise and full coverage designed to stay smooth under any outfit. Crafted with a cotton-blend body and a discreet leakproof liner that absorbs about 2 super tampons for all-day confidence. Perfect for everyday period backup, light bladder leaks, and sweat protection.

High-Rise, Full Coverage

Designed with an elevated rise and full bum coverage for a secure, supportive feel.

Invisible, No-Dig Finish

Innovative bonded seam design lays flat against your skin for a no-show finish under clothing.

Moderate Absorbency

Absorbs about 2 super tampons worth of liquid—great for moderate flow days, light bladder leaks, and sweat.

Soft Cotton Blend

Made with a soft cotton-blend body fabric for the everyday comfort you love.

Machine Washable

Wash with like colors on a cold cycle using a mild detergent. Do not bleach, dry clean, or iron. Tumble dry on low.

Fabric

Body: 68% Cotton, 32% Spandex
Fresh Fix Technology® Gusset:
Gusset 1: 88% Modal, 10% Spandex, 2% Nylon
Gusset 2: 100% SUPIMA® Cotton
Gusset 3: Face: 85% Nylon, 15% Spandex / Back: 100% Polybutylene terephthalate
Exclusive of Decoration

Additional Product Ingredient Information

• Days you don’t need leak protection. Everyday freshness and moisture wicking.

0 tsp

• Extra peace of mind. For the first days of your cycle, light bladder leaks, or a full night's sleep without a leak.

about 8-14 tsp
about 1.5-3 regular pads
about 4-7 super tampons
about 1.5-3 menstrual cups

• Daily freshness. For sweat, discharge, period spotting, or backup protection.

about 1-3 tsp
about 1-3 pantyliners
about 1-3 regular tampons
about 0.5 menstrual cups

• For mid-cycle flow, surprise cough or sneeze leaks, or a really sweaty spin class.

about 4-8 tsp
about 1-1.5 regular pads
about 2-4 super tampons
about 0.5-3 menstrual cups

• Ultimate peace of mind. For the heaviest period days, light bladder leaks, unexpected postpartum flow, or overnight protection.

about 15-20 tsp
about 1.5-2.5 super pads
about 7-11 super tampons
about 2-3 menstrual cups

OUR NEWEST INNOVATION IS HERE

COTTON. SEAMLESS. LEAKPROOF.

Impossible. Until now.

Cotton-Blend Comfort

Soft cotton-blend fabric delivers natural softness and the familiar, all-day comfort of your favorite everyday underwear.

Invisible Under Clothes

Built-In Leakproof Protection

Our Best-Selling Underwear

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Selling Fast

How to wash

Knix underwear is 100% reusable and machine washable, just like your regular undies.

Rinse

Not required. But for best results, you can rinse your leakproof with cold water in the tub or sink before washing.

Wash

Machine wash on a cold, gentle cycle with mild detergent.

Dry

For their longest life, air drying is best. Hang or lay flat to dry.

Avoid

Fabric softeners, bleach, ironing, or heat from the dryer.

Your underwear questions, answered.

What is your First Pair Risk Free for 30 Days Guarantee?

Leakproof Underwear, Risk Free

Trying leakproof underwear for the first time? Your first pair is completely risk free for 30 days. Wear them, wash them, and see how they work for your body. If they’re not right for you, we’ll refund your first pair. Prefer a different size or style? We also offer free exchanges.
How it works:
* Risk free applies to leakproof underwear on your first order
* Refund covers the item price (original shipping excluded)
* Just email info@knix.com and we’ll take care of you

Bundle & Save Offer - Terms & Conditions

Offer valid for a limited time on select styles on knix.com while supplies last.
Purchase 3+ eligible styles to receive 15% off, 5+ eligible styles to receive 20% off or 7+ eligible styles to receive 25% off. Exclusions apply.
Offer excludes already marked-down items and Last Call items. Eligible items must be purchased within a single transaction to qualify. Discount is automatically applied at checkout and is based on eligible items in your order. No rain checks or price adjustments on previous purchases. Discount cannot be combined with other offers.