Teen Period Underwear
Moisture-wicking, odor-crushing, life-changing leakproof undies.
- Black
- Black
- Beige
- Shady Blue
- Pink Pop
- Peachy
- Black
- Poolside
- Black
- Black
- Black
- Black
- Black
- Black
Exclusions apply. Offer valid from Wednesday, May 8th 9:00am to Monday, May 13 at 11:59pm EST. Applies only to in-stock items and cannot be extended after the listed date. No price adjustments for previous orders. Cannot be combined with any other discount offers. No rain checks. Contact your local store for collection availability.
For items with a 20% or more discount you may exchange for another item or store credit within 30 days of delivery. No refunds.
Knix store locations include: Toronto Queen St, Sherway Gardens, Toronto Premium Outlet, Ottawa Westboro, Ottawa Rideau Centre, Vancouver - West 4th, Vancouver - Robson, Calgary Mission, Calgary Market Mall, Winnipeg Polo Park, Edmonton Southgate, Richmond Centre
Free Shipping available on orders over $80+ CAD before tax and after discounts and applies to shipping addresses within Canada.
Each pair has a built-in liner that absorbs period blood. Kt Period Underwear is categorized by lightest, medium and heavy flows so you can find the right pair for your teen’s needs.
All of our period underwear, swimwear, reusable pads, and activewear have our patented leakproof technology built right in. Liner’s are discreet and comfortable, and fit for your teen’s unique flow.
That’s up to your teen or tween! Every flow and comfort level is different.
Depending on the absorbency level of the period underwear and the heaviness of your teen’s flow, they can wear our period undies on their own or as a backup to tampons or menstrual cups.
We always recommend they choose an option that makes them feel most confident!
Step 1: Give your teens underwear a quick rinse under cold water.
Step 2: Throw it in the washing machine with your regular clothes. Wash on cold with mild detergent (no softener or bleach).
Step 3: There are two ways to dry them depending on the undies you have: lay flat to dry for medium absorbency products, or tumble dry on low for high to super absorbency products.
Step 4: That’s it! No ironing needed.
Check out our size chart here. If you want some help, we have virtual fitters ready on deck to help you find your perfect fit. Book a video call with them today.
Because they’re, well, underwear, we can’t accept exchanges or returns on used items. BUT you can try your first pair on your first order risk-free for 30 days!
If you ordered the wrong size of period underwear, we’ll send you a different pair at no cost or offer you a standard refund within 30 days of delivery (excluding original shipping fees).
If your order included multiple period underwear, open, wash, and wear one pair only. That way if you don’t love them, any unopened packages from the same purchase will be eligible for an exchange or standard refund (excluding original shipping fees).
All unopened packages will be donated to local organizations to support people in need.
Underwear purchased as part of the Period Party Sale is eligible for exchange or store credit only. No refunds. Sale items are not eligible for our First Pair Risk Free Policy.
Super Sleepover Shorts and Reusable Pads purchased as part of the Period Party Sale are final sale. No exchanges or refunds can be accommodated.