How Period Underwear Works

Designed to
Deal with All the
Annoying Stuff.

Shut Up,
Period.

Knixteen ‘Oh-No’ Proof Technology™ is like having a really thin panty liner built right in, saving you and your pants from life-ruining leaks.

Bye Bye,
Stink.

Ever notice that Aunt Flo smells kind of funny? Our underwear has odor-crushing technology that keeps you feeling fresh.

See Ya,
Sweat.

Whether you’re powering through a big game, or you’ve got some unexpected wetness down there, Knixteen’s LYCRA SPORT® material is designed to soak up moisture and dry fast.

Get Lost,
Underwear
Lines.

If you can see your underwear through your pants, you may as well call them overwear. Knixteens are super thin and made seamless so underwear lines are a thing of the past.

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 (Ages 7-13)	Teen Pant Size (Ages 14+)
XS	25” - 27”	7	---
S	28” - 30”	8-10	---
M	31” - 35”	12-14	00-2
L	36” - 40”	16-20	4-10
XL	41” - 44”	---	12-16
XXL	45” - 48”	---	18-20

Find the Perfect Fit

1. Hips

KT Underwear is 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 Swimwear Size Chart

KT Swimwear is 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 (Ages 7-13)	Teen Pant Size (Ages 14+)
XS	28"	25” - 27”	7	---
S	30"	28” - 30”	8-10	---
M	32"	31” - 35”	12-14	00-2
L	34"	36” - 40”	16-20	4-10
XL	36"	41” - 44”	---	12-16
XXL	38"	45” - 48”	---	18-20

Find the Perfect Fit

1. Band

First, measure around the torso right below the breast

2. Hips

KT Underwear is 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.