Whew! Finally Free!
This is a fantastic product for athletic teens who don’t want to slow down just because they have their period. Leak proof and reliable, play on and feel free!
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Leakproof Active Short
No matter your sport, these shorts make sure you do it with confidence, even if it’s channel surfing. Made with the leakproof technology you love, they hold up to 6 pads’ worth of blood, and nobody will ever know you’re on your period, thanks to the discreet built-in liner.
First layer: Moisture-wicking technology wicks away sweat, keeping you fresh all day long.
Second layer: A super thin, highly-absorbent liner that holds the power of 6 tampons or pads.
Third layer: An extra-absorbent layer that keeps leaks from happening.
Key Features:
- Lightweight, 4-way stretch fabric for maximum movement
- A 4” inseam that doesn't’ roll up
- Flattering high-waisted fit
- Wide supportive waistband
- Quick-drying and moisture-wicking
high-performance shorts
that keep your period
on the down low.
![Image of a chrome heart surrounding text]()
that keep your period
on the down low.
Holds about 6 tampons’ or pads’ worth of blood.
Rapidly absorbs moisture to keep you fresh and dry all day.
4-way stretch fabric for maximum movement and comfort.
Discreet built-in liner keeps your period out of sight and out of mind.
No matter your sport, these shorts make sure you do it with confidence, even if it’s channel surfing. Made with the leakproof technology you love, they hold up to 6 pads’ worth of blood, and nobody will ever know you’re on your period, thanks to the discreet built-in liner.
First layer: Moisture-wicking technology wicks away sweat, keeping you fresh all day long.
Second layer: A super thin, highly-absorbent liner that holds the power of 6 tampons or pads.
Third layer: An extra-absorbent layer that keeps leaks from happening.
Key Features:
- Lightweight, 4-way stretch fabric for maximum movement
- A 4” inseam that doesn't’ roll up
- Flattering high-waisted fit
- Wide supportive waistband
- Quick-drying and moisture-wicking
Body: 70% Nylon, 30% Lycra® Myfit™
Mesh: 62% Nylon 38% Spandex
Lining: 86% Cotton, 10% Spandex, 4% Carbon
Gusset: Fresh Fix Technology®, 88% Polyester, 12% Nylon
Machine wash cold with like colors and mild detergent, do not bleach or iron, lay flat to dry.
Please note, items that are 35% off or less are eligible for exchange or store credit. All items marked "Black Friday Deals" are final sale.
We offer free standard shipping on all orders over $80.
We ship our items via DHL or Canada Post depending on your location. Please allow 1-2 business days for your items to be processed and shipped. During high volume periods, your order may take up to 7 business days to dispatch from our warehouse location.
Canadian Orders: Please allow 2–4 business days for shipping to the GTA, 3–10 business days for urban areas, and 6–15 business days for remote locations.
NOTE: Orders placed on Friday after 1 PM will not be processed until the following Monday.
nothing is tmi here—we promise.
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Both our activewear and underwear feature our patented leakproof technology. There are 3 super thin layers in the gusset (crotch area) that wick away moisture, rapidly absorb blood, sweat & discharge, all while working to lock in leaks. So squat, jump, stretch and move without peek-a-boo tampon strings, bulky pad seams or embarrassing leaks again.
Super Absorbency
Absorbs 9–12 tsp (45–60 ml) of blood—that’s about 9–12 regular tampons or pads! Perfect for overnight protection or your heaviest days when changing into a fresh pair might not be convenient.
High Absorbency
Absorbs 4–8 tsp (20–40 ml) of blood, or the equivalent of 4–8 tampons or pads. These are perfect for heavy flow days.
Medium Absorbency
Absorbs up to 3 tsp (15 ml), or about 3 tampons’ or pads’ worth of blood. Ideal as everyday wear for blood, sweat and discharge, light to medium flow days, or as backup to tampons or period cups.
It’s totally up to you! We have recommendations based on each product, but only you know your flow and comfort levels.
Leakproof Active Legging & Leakproof Active Short - Both have a built-in liner with the holding power of 6 tampons or pads, so they can be used as your only protection or as back up.
Leakproof Leotard & Leakproof Tights - We suggest using them with a tampon or menstrual cup during your cycle’s medium to heavy days. Wear them alone when you have a light flow.
Period Underwear - High and Super absorbency was designed to be worn alone, even on heavy days. Medium absorbency can be worn alone on lighter days or as backup on heavier days.
Step 1: Give your underwear or activewear a quick rinse under cold water.
Step 2: Throw them in the washing machine with your regular clothes. Like-colors for activewear. 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 and activewear, or tumble dry on low for high to super absorbency underwear.
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.
Yes! You can return or exchange your activewear within 30 days of delivery, as long as the tags are still attached.
Our collection is made to fit teen bodies. For period-proof activewear in adult sizing, please visit Knix.
Reviews
Based on 14 reviews
64%
of reviewers would recommend this product to a friend
14 Reviews
It fits well! Will definitely order again.
The sales ladies got an undergarment for me quickly since I was pressed with time and it fits perfectly. Great customer service and quality is superb!
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Reviewed by haley t.
Verified Buyer
Reviewing
Leakproof Active Short
I recommend this product
I'm a...
Adult
I purchased for...
Myself
Pant Size
Teen 00-2
Size Purchased
XS
Usage
- Other
so comfortable!
love how comfortable they are. and gives peace of mind while i'm on my period!
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| Quality |
Rated 5 out of 5
|
|---|---|
| Comfort |
Rated 5 out of 5
|
| Sizing |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to SIze and 2 is Fits Large
|
| Effectiveness |
Rated 5 out of 5
|
Was this helpful?
Reviewed by Heather M.
Verified Buyer
Reviewing
Leakproof Active Short
I recommend this product
I'm a...
Parental Figure
I purchased for...
A Teenager/Tween
Pant Size
Kids 12-14
Size Purchased
S
Usage
- Period
In love
My Daughter Loves these! She says they are really comfortable and she wears them even when it isn’t her period because she loves them so much.
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| Quality |
Rated 5 out of 5
|
|---|---|
| Comfort |
Rated 5 out of 5
|
| Sizing |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to SIze and 2 is Fits Large
|
| Effectiveness |
Rated 5 out of 5
|
Was this helpful?
Reviewed by Genevieve L.
Verified Buyer
Reviewing
Leakproof Active Short
I recommend this product
I'm a...
Parental Figure
I purchased for...
A Teenager/Tween
Pant Size
Teen 12-16
Size Purchased
S
Usage
- Period
- Primary Protection
Very nice biker short
My daughter is a very active and sportive girl and she likes a lot those biker short. It is a game changer for her!!
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| Quality |
Rated 5 out of 5
|
|---|---|
| Comfort |
Rated 5 out of 5
|
| Sizing |
Rated 0 on a scale of minus 2 to 2, where minus 2 is Fits Small, 0 is True to SIze and 2 is Fits Large
|
| Effectiveness |
Rated 5 out of 5
|
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