Best Sellers | Kt by Knix

15% Off Sitewide +30-60% Off Period Faves (Shop Now)

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Super Leakproof® Sleepover Short

Heavy Absorbency

$33.15 ^USD $39 ^USD 15-40% OFF

Light Leakproof No-Show Underwear Bikini

Lightest Absorbency

$16.15 ^USD $19 ^USD 15-40% OFF

Leakproof UltraThin No-Show Underwear Bikini 3-Pack

Medium Absorbency

$39.60 ^USD $66 ^USD 15-40% OFF

Leakproof UltraThin No-Show Underwear Bikini

Medium Absorbency

$18.70 ^USD $22 ^USD 15-30% OFF

Great for A Whole Cycle

First Period Kit

Medium - Heavy Absorbency

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$145.35 ^USD $171 ^USD Save 15%

Leakproof UltraThin No-Show Underwear Boyshort 3-Pack

Medium Absorbency

$56.10 ^USD $66 ^USD 15-40% OFF

Light Leakproof No-Show Underwear Boyshort

Light Absorbency

$11.40 ^USD $19 ^USD 15-40% OFF

Leakproof UltraThin No-Show Underwear Boyshort

Medium Absorbency

$18.70 ^USD $22 ^USD 15-30% OFF

Period Swim Sport One-Piece

Light Absorbency

$70.55 ^USD $83 ^USD 15% OFF

MAXIMUM BUM COVERAGE

Period Swim Short

Light Absorbency

$42.50 ^USD $50 ^USD 15-60% OFF

Great for All Flows

Starter Underwear 4-Pack

Light - Heavy Absorbency

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$103.70 ^USD $122 ^USD Save 15%

Super Leakproof® No-Show Underwear Bikini

Heavy Absorbency

$21.25 ^USD $25 ^USD 15-40% OFF

Super Leakproof® No-Show Underwear Boyshort

Heavy Absorbency

$21.25 ^USD $25 ^USD 15-40% OFF

Leakproof Luxe Modal Sleep Boxer

Medium Absorbency

$24.65 ^USD $29 ^USD 15-30% OFF

UNDER-OUTFIT CONFIDENCE

Leakproof Thigh Saver®

Light Absorbency

$32.30 ^USD $38 ^USD 15% OFF

Great for Heavy Flows

Heavy Flow Period Kit

Heavy Absorbency

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$160.65 ^USD $189 ^USD Save 15%

Period Swim Full-Coverage Bikini Bottom

Light Absorbency

$34 ^USD $40 ^USD 15-60% OFF

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.