14 Period Products From Kt By Knix That Are Actual Lifesavers For Teens This Summer — AND They're On Sale!

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10-07-2025

Summer is absolutely the greatest season. But for those who are lucky enough to menstruate, choosing what to wear can get...complicated. Leaking is a top-tier enemy for many of us, but it's especially uncomfy as a teen, when periods are new and taboo. And the facts speak for themselves: 1 in 5 teens say they've been let down by their sanitary protection.
BUT fear not, friends! Canadian intimates brand Knix is here to spare us all. You might know Knix from their (honestly life-changing) Leakproof Underwear — well, their teen brand Kt by Knix was born to give teens and tweens a space in the world of periods. Kt is having a warehouse sale, just in time for summer!
So if you were thinking about getting some clothes to save you from the stress of leaking, or as a gift for the teen in your life, now's the time. The sale won't last long, so make sure you or your teen is ready for summer!
The sale is on from now until July 14, and it's up to 50% off (yes, you read that right). It's coming and going quickly, so make sure you're ready!
Here's a taste of what you'll find in the Kt Warehouse Sale:
The Super Leakproof® Sleepover Short that will take the stress away from any sleepover anxiety. They're ultra-comfy, leakproof, and come in adorable designs. Functional AND fashionable!
Get them from Kt, select colours are on sale for $36.00 CAD (originally $45.00). Available in eight colours and in sizes XXS to XXL.
The Super Leakproof® No-Show Underwear Bikini 3-Pack that absorbs three tampons' worth of blood and feels just like regular underwear. Perfect for those first few days of your period, so you can enjoy summer activities without worry of leaking.
Get a pack of three Leakproof® underwear from Kt for $75.00 CAD or less (originally $87.00). Available in six varieties with numerous colours, and in sizes XXS to XXL.
Or, the First Period Kit – Bikini which includes six pairs of underwear and a pair of shorts — all leakproof! — plus a reusable pouch for any extra supplies you might need. So if you're going on a cottage getaway or camping trip, just pack this kit and you're good to go!
Get it from Kt for $148.50 CAD (originally $198.00) in sizes XXS to XXL.
The Light Leakproof No-Show Underwear Bikini that practically invented versatility, totally wearable at any point in your cycle. They absorb about one tampon's worth of blood, and they're super thin, so you'll barely even notice it's there. Easy and breezy!
Get it from Kt, select colours are on sale for $17.60 CAD (originally $22.00). Available in seven colours and in sizes XXS to XXL.
For a medium-flow day when you still want some coverage, the Leakproof UltraThin No-Show Underwear Bikini are a must. Even if you're not on your period, they're amazing as a just-in-case stress reliever if you've got an irregular cycle (which, yep, many teens do).
Get it from Kt, select colours are on sale for $12.50 CAD (originally $25.00). Available in eight colours and in sizes XXS to XXL. (We're obsessed with the Galaxy!)
The Super Leakproof® No-Show Underwear Bikini are a go-to secret weapon for your heaviest period day. They hold three super tampons' worth of blood, which is truly jaw-dropping once you feel how light and seamless they are.
Get it from Kt, select colours are on sale for $23.20 CAD (originally $29.00). Available in 10 colours and in sizes XXS to XXL.
And if you prefer boyshort-style undies, the Light Leakproof No-Show Underwear Boyshort will be your bestie for busy days or hot summer nights. They're soft, stretchy, and a total must-have for the days when you want a little extra protection.
Get it from Kt, select colours are on sale for $17.60 CAD (originally $22.00). Available in six colours and in sizes XXS to XXL.
The Super Leakproof® No-Show Underwear Boyshort are the magic pair of boyshort undies every teen needs in their closet for heavy period days. Wear these under your fave pair of shorts without fear of seam lines or leaking (like I said: magic!).
Get it from Kt, select colours are on sale for $23.20 CAD (originally $29.00). Available in nine colours and in sizes XXS to XXL.
The Period Swim Sport One-Piece keeps selling out, so you'll definitely have to snag it while it's available. This is the ultimate one-piece bathing suit, holding up to two super tampons' worth of blood! So having your period on the day of a pool party or lake day thankfully won't be an issue anymore.
Get it from Kt, select colours are on sale for $69.30 CAD (originally $99.00). Available in seven colours and in sizes XXS to XXL. (The Ivy Bloom pattern is our fave!)
The Period Swim Square Neck One-Piece can, of course, be worn for a leisurely beach day, but it's also great for an active swim. There's nothing like swimming laps in the summer, and this suit is gonna make sure your period never gets in the way of that.
Get it from Kt for $79.20 CAD (originally $99.00). On sale in three colours and in sizes XXS to XXL.
And if you're a bikini person, Kt has you covered. You can wear the Double Scoop Bikini Top for a swimming workout, or as a stunning choice for a casual pool day; either way, this is the bikini top you've been waiting for. It's got a secure underband, too, so you'll get all the support you need.
Get it from Kt, select colours are on sale for $44.00 CAD (originally $55.00). Available in six colours and in sizes XXS to XXL.
The Period Swim Full-Coverage Bikini Bottom are the best pair of bikini bottoms that you'll find for full coverage, comfort, and cuteness. You'll never have to say "can you check me?" in these, which is a huge relief.
Get it from Kt, select colours are on sale for $38.50 CAD (originally $55.00). Available in seven colours and in sizes XXS to XXL.
The Leakproof Active Legging will never stop you from being active, this summer and all year round! You can never go wrong with a solid pair of leggings, especially if they're built to handle your period.
Get it from Kt for $60.00 CAD (originally $75.00). On sale in two colours and in sizes XXS to XXL.
And finally, the Leakproof Active Short are not just comfy; they're completely discrete and seamless. These shorts are stylish for any occasion: a chill day at home, morning at the gym, or lunch with friends.
Get it from Kt for $31.50 CAD (originally $45.00). On sale in three colours and in sizes XXS to XXL.
In case you're worried about finding the right size for all these goodies, Kt has a sizing guide that'll make sure everything fits like a glove. And if you're wondering how to wash these, it actually couldn't be simpler: You can machine wash in cold water with similar colours and mild detergent, lay them flat to dry, and you're good to go!
And it's clear Kt is the expert here — Kt has been tried and tested by over 280,000 teens, just check out the thousands of reviews from teens and parents raving about all these products! Shop the sale until July 14!
The teen in your life absolutely OWNING their period in their new Kt gear this summer:
Want more Knix? You're in the right place! We've also been raving about Knix Thigh Saver® and the Knix Warehouse Sale, which you don't wanna miss. Those are both under the regular Knix brand, so they're perfect for adults!