Buy Comfortable Wireless Bras & Seamless Underwear Online - Knix

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The Vault Sale

The Vault Sale

This is the one!

And right now you get an extra 10% off when you spend $150! But everything closes October 3.

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Leakproof Undies starting at $9

Leakproof Undies starting at $9

Leakproof for way less!

Save huge on Leakproof & Super Leakproof 3-packs starting at $9/pair. Sure to sell out!

Catalyst Front Zip Pink Ginger

Catalyst Front Zip Pink Ginger

Our best sports bra & best price

The Front Zip Catalyst has never looked so good. Get it before it’s gone!

WE'RE REDEFINING INTIMATES

At Knix, we believe that everyone should be able to live unapologetically free.

Free from judgment. Free from self-doubt. Free to be yourself.

Top Sale Picks

Up to 40% off Leakproof Undies

Save up to 40% on Period Underwear!

Now is your chance to score a whole bunch of life-changing Leakproof Underwear!

Save on Leakproof

Front Zip Catalyst $40

$40 Front Zip Catalyst Sports Bra

The Front Zip Catalyst has never looked so good. Get it before it’s gone!

Lace Deep V Bralette $20

$20 Deep V Lace Bralette

Get into the Deep V Lace Bralette at an unbelievable price. Supplies are limited!

Knix Fund

The Knix Fund

We work with our community to make products that combine comfort with style and affordability.

KT Book

Our very first children’s book

We wrote a book to prepare kids and parents for when that first period arrives, and to remind them that there’s absolutely nothing “ew” about it.

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Find your perfect fit for wireless bras, leakproof undies and more. Stores in US & Canada.

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Underwear starting at $9/pair

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color:Charcoal/Amethyst/Pure Blue

Super Leakproof Boyshort 3-Pack - Vault Sale

Save 40%

color:Coral/Slate Blue/Cactus

Super Leakproof High Rise 3-Pack - Vault Sale

Save 40%

color:Charcoal/Amethyst/Pure Blue

Super Leakproof High Rise 3-Pack - Vault Sale

Save 40%

color:Coral/Slate Blue/Cactus

Super Leakproof Bikini 3-Pack - Vault Sale

Save 40%

color:Charcoal/Amethyst/Pure Blue

Super Leakproof Thong 3-Pack - Vault Sale

Save 40%

color:Twilight Navy/Spiced Apple/Rosette

Leakproof Boyshort 3-Pack - Vault Sale

Save 40%

color:Twilight Navy/Spiced Apple/Rosette

Leakproof Bikini 3-Pack - Vault Sale

Save 40%

color:Horizon/Pink Clay/Winterberry

Leakproof High Rise 3-Pack - Vault Sale

Save 40%

color:Twilight Navy/Spiced Apple/Rosette

Leakproof Cheeky 3-Pack - Vault Sale

Save 40%

color:Horizon/Pink Clay/Winterberry

Leakproof Thong 3-Pack - Vault Sale

Save 40%

color:Seaglass/Violet/Deep Purple

Leakproof Lace Thong 3-Pack - Vault Sale

Save 40%

color:Celery/Smokeshow/Iris

Leakproof Bikini 3-Pack - Vault Sale

Save 40%

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Bras starting at $20
Underwear Starting at $9/pair
40% off Active
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The Vault SaleSHOP NOW
Undies starting at $9/pairSHOP NOW
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Leakproof
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Now up to 40% Off!SHOP NOW
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Deep-V Bralette Now $20SHOP NOW
Catalyst Front Zip now $40SHOP NOW
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Undies starting at $9/pairSHOP NOW
Up to 60% off TeenSHOP NOW
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Papaya Mock Neck Bodysuit now $25SHOP NOW
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Top Sale Picks

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color:Periwinkle

Lace Deep-V Bralette - Vault Sale

Save 54%

color:pink ginger

Catalyst Front Zip Sports Bra - Vault Sale

Save 55%

color:Pink Plum

Lace WingWoman Contour Bra - Vault Sale

Save 30%

color:Dune

LuxeLift Pullover Bra - Vault Sale

Save 40%

color:Horizon/Pink Clay/Winterberry

Leakproof Bikini 3-Pack - Vault Sale

Save 40%

color:Coral/Slate Blue/Cactus

Super Leakproof Bikini 3-Pack - Vault Sale

Save 40%

color:orchid

Padded V-Neck Bra - Thin Strap - Vault Sale

Save 40%

color:Horizon/Pink Clay/Winterberry

Leakproof High Rise 3-Pack - Vault Sale

Save 40%

Lina has 38" hips and wears a Knix size M color:Rosewood

HiTouch™️ High Rise Legging - Vault Sale

Save 40%

color:Berry/Dark Cherry style:dreamshort

Super Leakproof Dream Short 2-Pack Kit - Vault Sale

Save 30%

Underwear starting at $9/pair

SHOP ALL

color:Charcoal/Amethyst/Pure Blue

Super Leakproof Boyshort 3-Pack - Vault Sale

40% off

color:Coral/Slate Blue/Cactus