Hey Period,Shop Now
Shut Up‘Oh-No’ Proof.Super protective underwear for period leaks that's got your back, and your pants.Super Thin.Panties built with smooth, seamless technology. Because diapers are for babies.
Period Panties & Teen Underwear
We've got this bleeding once a month thing covered.
Available in our classic Bikini or full-coverage Boyshort, all of our underwear is tested by teens and tweens, and loved by moms (the laundry struggle is real).
Cute panties that also hold in menstrual blood. Check.
Each pair is seamless, comfortable and leak-proof (holds 2 tampons worth of blood) plus our anti-microbial technology fights bacteria, keeping you odor-free and feelin' fresh.
Don't let cash flow get in the way of stopping aunt flow.
You can buy our seamless panties online or subtly ask a parent for them *hint hint* by sharing your bag. How's that for a menstrual evolution?
What girls are saying about Knixteen
"My teen daughter is relieved she does not have to worry about accidents at school. One less stress off her plate! I highly recommend."—Anne M.“Bought them for my granddaughter to give her confidence when she has her period. She is 11 years old and loves the panties.”—Teresa P.