🎉 Up to 70% Off Selected ItemsShop Sale

Shop All Sale - Period Underwear

Shop All Sale - Period Underwear

Price

Min

-

Max

Collections

All LeakproofAccessoriesAll Collection - For couponALL Full Priced ItemsBest SellersAavia - Swim Best Sellers2 for $22 PacksAavia - Sleep Best SellersBack to School - KitsAavia - Underwear Best SellersAshley Lewis Best SellersActivewear Bottom

Subscribe to our newsletter for exclusive offers, new arrivals, and style inspiration.

Shop

All Products
New Arrivals
Sale

Company

Shipping Info
FAQ
Contact Us

About

About Us
Returns
Privacy

© 2026 KT by Knix. All rights reserved.

-65%NEW

Light Leakproof No-Show Boyshort 3-Pack

$66.00

$23.10

-65%NEW

Leakproof UltraThin No-Show Boyshort

$24.00

$8.40

-65%NEW

Leakproof Cotton Bikini

$22.00

$7.70

-65%NEW

Leakproof Luxe Modal Sleep Boxer

$34.00

$11.90

-65%NEW

Light Leakproof No-Show Bikini

$22.00

$7.70

-65%NEW

Super Leakproof® Sleepover Boxer

$45.00

$15.75

-65%NEW

Super Leakproof® Sleepover Short

$40.00

$14.00

-65%NEW

Super Leakproof® No-Show Bikini

$27.00

$9.45