Buy Comfortable Wireless Bras & Seamless Underwear Online - Knix

Skip to content

Help
Returns & Exchanges
Shipping
Size Guides
Rewards
Virtual Fittings
Gift Card Balance
FAQs
Contact Us
Virtual FittingsBOOK NOW
Refer a FriendLearn More
About
Knix FundLearn More
Careers at KnixLearn More
Story & Mission
Why Leakproof?
Virtual Fittings
Store Locations
Ambassador Program
Careers
Rewards
Refer a Friend
Stores
Gift Cards
Blog

New
Categories
Shop All New
Best Sellers
Thigh Saver® Shorts
Ultra-Thin Leakproof Underwear
Sexy Mesh Collection
Citron Collection
Featured
Introducing Gabrielle Union
Sport Your Period.
Let's Talk Perimenopause
Gabrielle UnionShop now
NEW CitronSHOP NOW
Leakproof Underwear
Shop by Absorbency
Lightest
Light
Medium
Heavy
Ultra
Zero
All Underwear
Shop by Style
High Rise
Boyshort
Bikini
Thong
French Cut
Shorts & Boxer Briefs
Cheeky
Thigh Savers
Reusable Pads
Save on Period KitsShop Kits
Why Leakproof?SHOP NOW
Bras
Categories
All Bras
T-Shirt Bras
V-Neck Bras
Pullover Bras
Seamless Bras
Sports Bras
Maternity Bras
Find Your Fit
The Bra Guide
Take the Quiz
The Bra GuideLEARN MORE
NEW CitronSHOP NOW
Shapewear
Shop by Style
All Shapewear & Thigh Savers
Thigh Savers
Leakproof Shapewear
Tanks & Bodysuits
Leakproof ShapewearSHOP NOW
NEW Thigh SaversSHOP NOW
Swim
Categories
All Swim
Swim One-Pieces
Swim Tops
Swim Bottoms
Leakproof Swimwear
Sets & Accessories
Cover Ups
Teen Period Swim
NEW SwimShop Now
Teen Period SwimSHOP NOW
Active & Apparel
Active
All Active
Sports Bras
Leggings & Shorts
Active Tops
Swim
Athleisure
Apparel
All Apparel
Loungewear
Sleepwear
Tanks & Bodysuits
Wardrobe Heroes
Maternity
Swim
Accessories
MaternitySHOP NOW
SleepwearShop Now
Teen
Categories
All Teen
Teen Period Underwear
Teen Thigh Savers
Teen Period Swim
Teen Period Kits
Teen Period Activewear
Teen Thigh SaversSHOP NOW
Teen Period SwimSHOP NOW
Sale

A soft, sheer collection made with sizzling mesh. It’s soft, breathable and super hot.

A soft, sheer collection made with sizzling mesh. It’s soft, breathable and super hot.

Knix for Life

Intimates designed for the reality of our bodies. And everything we put them through.

SHOP BRAS SHOP LEAKPROOF

Shop by Category

UW Black

Leakproof Underwear

One and Only Bra

Bras

Thigh Savers

Thigh Savers

Active

Active

Swim

Swim

Shapewear

Shapewear

Sleep

Sleep

Teen

Teen

Apparel

Apparel

Maternity

Maternity

Sale

Sale

Thigh Savers

Thigh Savers

ALL NEW

Emerge from thighbernation

Wear that dress. Your thighs are covered.

LEARN MORE SHOP THIGH SAVER®

Why Choose Knix

Why Choose Knix

Better bras for your boobs

Better bras for your boobs

NEW EASY SIZING

Better bras

for your boobs

Wireless just got sexier in 99 sizes. Pair your new undies with our WingWoman Bra in new and improved sizing.

SHOP WINGWOMAN SHOP ALL BRAS

Citron

Citron

NEW COLOR

Instant mood boost

The highlight of your undie drawer. Check out new arrivals in on-trend Citron for a jolt of spring optimism.

SHOP WHAT’S NEW IN CITRON

Ways to save

Save on Period Kits 4

Save on Period Kits

Skip the guesswork with curated Period Underwear Kits and save 10–15%

Save up to 20%

Bundle & Save up to 25%

Stock up and save when you buy more pairs.
For a limited time, including Teen Underwear!

Earn points with Knix Rewards

Earn points with Knix Rewards

Spend $1, earn 1 point every time you shop. Redeem $10 every 100 points.

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.

Store Image

Come say hello in-store!

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

Perimenopause

Let’s Talk Perimenopause

Hold up. What is perimenopause?

Find your perfect bra

Find your perfect bra

Know what you like, but not sure where to start?

Shop by Category

Bras Leakproof Swim Underwear Shapewear Sleepwear Active Apparel Teen Sale

Contact Us Returns & Exchanges Shipping Product Testing and Safety FAQs Gift Card Balance

Rewards Size Guides Virtual Fittings Resources Store Locations

Story & Mission Sustainability & Philanthropy Careers Blog

Stay in the flow

Give $20Get $20

Privacy Policy
California Privacy Rights
Privacy Choices
Accessibility Statement

Best Sellers

Shop All

The One&Only Scoop Bra™

The One&Only Scoop Bra™

+3

Revolution V-Neck Bra

Revolution V-Neck Bra

+13

Gabrielle has 48" hips and wears a Knix size XXL

Light Leakproof No-Show Bikini

+17

Marlene has 50" hips and wears a Knix size XXL

Light Leakproof No-Show High Rise

+15

WingWoman Contour Bra

WingWoman Contour Bra

+2

Tsanna has 34.5" hips and wears a Knix size S

Super Leakproof™ No-Show Bikini

+8

Isabelle has 40" hips and wears a Knix size M

Super Leakproof™ No-Show High Rise

+9

Amber has 38" hips and wears a Knix size M

Light Leakproof No-Show Thong

+13

Shop Sets

Shop All

Love Your Shape-Wear Set

Love Your Shape-Wear Set

Momenta Active T-Shirt & LeakStrong® Leakproof Legging

Momenta Active T-Shirt & LeakStrong® Leakproof Legging

Deep V Bikini Top, Leakproof High Rise Swim Bottoms and Sarong Set

Deep V Bikini Top, Leakproof High Rise Swim Bottoms and Sarong Set

One&Only Bra™ Set - Bikini

One&Only Bra™ Set - Bikini

Mix and match your choice of colors!

Mixed Period Kit - Boyshort

Mix and match your choice of colors!

Heavy Period Kit - High Rise

Teen First Period Kit - Bikini

Teen First Period Kit - Bikini

Teen Period Full Confidence Swim Set

Teen Period Full Confidence Swim Set

Mesh Deep V Bra Set - High Rise

Mesh Deep V Bra Set - High Rise