Mix Match & Save: Save 15% on 3+ or 20% on 5+ (Shop Now)

you've got this in the bag

Find What Works for Her.

Any cut. Any color. Any Absorbency.
Mix across sleep, underwear, and swim.
Save 15% on 3+ or 20% on 5+

Find What Works for Her.

Any cut. Any color. Any Absorbency.
Mix across sleep, underwear, and swim.
Save 15% on 3+ or 20% on 5+

Mix, Match and Save

+2

Super Leakproof® No-Show Underwear Bikini

Heavy Absorbency

$27 ^USD Buy More Save More

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Heaviest Absorbency Yet

+1

Super Leakproof® Sleepover Boxer

Heavy Absorbency

$45 ^USD Buy More Save More

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Period Swim Freestyle One-Piece

Light Absorbency

$88 ^USD Buy More Save More

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+3

Leakproof UltraThin No-Show Underwear Bikini

Moderate Absorbency

$24 ^USD Buy More Save More

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+6
+2

Light Leakproof No-Show Underwear Boyshort

Light Absorbency

$22 ^USD Buy More Save More

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Leakproof Cotton Underwear Bikini

Moderate Absorbency

$22 ^USD Buy More Save More

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+3

Leakproof UltraThin No-Show Thong

Light Absorbency

$24 ^USD Buy More Save More

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+5
+1

Light Leakproof No-Show Underwear Bikini

Light Absorbency

$22 ^USD Buy More Save More

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+2

Leakproof UltraThin No-Show Underwear Boyshort

Moderate Absorbency

$24 ^USD Buy More Save More

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+2

Super Leakproof® No-Show Underwear Boyshort

Heavy Absorbency

$27 ^USD Buy More Save More

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More Fun.
Less Worry.
No Leaks.

Discreet built-in absorbency protects in and out of the pool, so she never has to sit out a swim day.

More Fun. Less Worry. No Leaks.

Discreet built-in absorbency protects in and out of the pool, so she never has to sit out a swim day.

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Machine Washable

Swim Sets

Scoop Tankini Top

$55 ^USD Buy More Save More

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+3

Period Swim Full-Coverage Bikini Bottom

Moderate Absorbency

$45 ^USD Buy More Save More

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String Bikini Top

$35 ^USD Buy More Save More

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+2

Period Swim Bikini Bottom

Moderate Absorbency

$45 ^USD Buy More Save More

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+2

Racerback Tankini Swim Top

$45 ^USD Buy More Save More

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+2

Period Swim Short

Moderate Absorbency

$55 ^USD Buy More Save More

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Square Neck Scoop Bikini Top

$45 ^USD Buy More Save More

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+3

Period Swim Full-Coverage Bikini Bottom

Moderate Absorbency

$45 ^USD Buy More Save More

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Overnight Protection You Can Trust

Worry less about stained sheets.
Mix across sleep, underwear, and swim.
Save 15% on 3+ or 20% on 5+

Overnight Protection You Can Trust

Worry less about stained sheets.
Mix across sleep, underwear, and swim.
Save 15% on 3+ or 20% on 5+

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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FREE SHIPPING OVER $70

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Read The Rag

Free Period Guide

Everything your teen ever wanted to know about puberty, menstruation, and more.

Download the Guide

“With this new line, teens can lean into that life well lived from their very first period”

"KT by Knix is aimed at both helping teen girls deal with the reality of periods"

“KT by Knix products are simple and easy to use — you can wear them under absolutely anything”

Teen Underwear Size Chart

KT Period Underwear is designed for smaller and growing bodies to fit teens and tweens

For adult sizes and styles, check out Knix .

KT Size	Hips	Kids Pant Size	Adult Pant Size
XXS	25” - 27”	7	---
XS	28” - 30”	8 - 10	---
S	31” - 34”	12 - 14	00 - 2
M	35” - 38”	16 - 20	4 - 8
L	39” - 42”	---	10 - 14
XL	43” - 46”	---	16 - 18
XXL	47” - 50”	---	20 - 22

Find the Perfect Fit

1. Hips

Stand with your feet together and measure around the widest part of your hips and bottom. Keep the measuring tape parallel to the floor.

Still Not Sure What Size To Get?

Book a Virtual Fitting with a team member and get 1:1 help over video chat.

Teen Swimwear Size Chart

KT swimsuits are designed for smaller and growing bodies to fit teens and tweens

For adult sizes and styles, check out Knix .

KT Size	Band	Hips	Kids Pant Size	Adult Pant Size
XXS	23 ³/₄" - 25 ¹/₄"	25” - 27”	7	---
XS	25 ¹/₄" - 26 ³/₄"	28” - 30”	8 - 10	---
S	26 ³/₄" - 28 ¹/₄"	31" - 34"	12 - 14	00 - 2
M	28 ¹/₄" - 29 ³/₄"	35” - 38"	16 - 20	4 - 8
L	29 ³/₄" - 31 ¹/₂"	39” - 42”	---	10 - 14
XL	31 ¹/₂" - 33 ¹/₂"	43” - 46”	---	16 - 18
XXL	33 ¹/₂" - 35 ¹/₂"	47” - 50”	---	20 - 22

Find the Perfect Fit

1. Band

First, measure around the torso right below the breast

2. Hips

Stand with your feet together and measure around the widest part of your hips and bottom. Keep the measuring tape parallel to the floor.

Still Not Sure What Size To Get?

Book a Virtual Fitting with a team member and get 1:1 help over video chat.

Teen Activewear Size Chart

KT activewear is designed for smaller and growing bodies to fit teens and tweens

For adult sizes and styles, check out Knix .

KT Size	Hips	Kids Pant Size	Adult Pant Size
XXS	25” - 27”	7	---
XS	28” - 30”	8 - 10	---
S	31” - 34”	12 - 14	00 - 2
M	35” - 38”	16 - 20	4 - 8
L	39” - 42”	---	10 - 14
XL	43” - 46”	---	16 - 18
XXL	47” - 50”	---	20 - 22

Find the Perfect Fit

1. Hips

Stand with your feet together and measure around the widest part of your hips and bottom. Keep the measuring tape parallel to the floor.

Still Not Sure What Size To Get?

Book a Virtual Fitting with a team member and get 1:1 help over video chat.

Teen Leotard Size Chart

KT leotards are designed for smaller and growing bodies to fit teens and tweens

For adult sizes and styles, check out Knix.

KT Size	Band	Hips
XS	28"	25” - 27”
S	30"	28” - 30”
M	32"	31” - 35”
L	34"	36” - 40”
XL	36"	41” - 44”
XXL	38"	45” - 48”

Find the Perfect Fit

1. Band

First, measure around the torso right below the breast

2. Hips

KT Leotards are designed to sit on the hips, so measure around the widest part of the hips and refer to the chart above to find the best fit.

Still Not Sure What Size To Get?

Book a Virtual Fitting with a team member and get 1:1 help over video chat.

Teen Sweatshirt Size Chart

Size	Bust	Hips
XS	27”	25" - 27"
S	30”	28" - 30"
M	34"	31" - 35"
L	37”	36" - 40"
XL	40”	41" - 44"
XXL	40”	45" - 48"

Still Not Sure What Size To Get?

Book a Virtual Fitting with a team member and get 1:1 help over video chat.

Freestyle Leakproof Tights Size Chart

Size	Hips	Height	Weight
XS/S	25" - 30"	4'2" - 5'1"	65 - 100 lbs
M/L	31" - 40"	4'9" - 5'6"	105 - 130 lbs
XL/XXL	41" - 48"	4'11" - 5'6"	135 - 170 lbs

Still Not Sure What Size To Get?

Book a Virtual Fitting with a team member and get 1:1 help over video chat.

Thigh Savers Size Chart

KT Products are designed for smaller and growing bodies to fit teens and tweens

For adult sizes and styles, check out Knix .

KT Size	Hips	Kids Pant Size	Adult Pant Size
XXS	25” - 27”	7	---
XS	28” - 30”	8 - 10	---
S	31” - 34”	12 - 14	00 - 2
M	35” - 38”	16 - 20	4 - 8
L	39” - 42”	---	10 - 14
XL	43” - 46”	---	16 - 18
XXL	47” - 50”	---	20 - 22

Find the Perfect Fit

1. Hips

Stand with your feet together and measure around the widest part of your hips and bottom. Keep the measuring tape parallel to the floor.

Still Not Sure What Size To Get?

Book a Virtual Fitting with a team member and get 1:1 help over video chat.

Bras Size Chart

KT Products are designed for smaller and growing bodies to fit teens and tweens

For adult sizes and styles, check out Knix .

Size	Under Bust (in)	Fits Cups
S	26 3/4” - 28 1/4”	A-DD
M	28 1/4” - 29 3/4”	A-DD
L	29 3/4” - 31 1/2”	A-DD