Leakproof Active Legging

Here to change the game forever, these high-performance leggings have a discreet built-in liner, and hold up to 6 pads’ worth of blood, thanks to our famous leakproof technology. Whether you’re on the court, field, track or couch—never worry about tampon strings, bulky pad seams or embarrassing leaks again. 


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

- Full length with a 26” inseam

- Flattering high-waisted fit 

- Wide supportive waistband

- Quick-drying and moisture-wicking

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FOR THE PLANET
FOR REAL LIFE
FOR THIS GENERATION
FOR THE PLANET
FOR REAL LIFE
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FOR THE PLANET
FOR REAL LIFE
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FOR REAL LIFE
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 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.

COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
COMFORTABLE
ABSORBENT
JUST PLAIN BETTER
REUSABLE
Reviews
average rating 2.8 out of 5
Based on 9 reviews
  • 5 Stars
    2 Reviews
  • 4 Stars
    1 Review
  • 3 Stars
    1 Review
  • 2 Stars
    3 Reviews
  • 1 Star
    2 Reviews
33% of reviewers would recommend this product to a friend
9 Reviews
Reviewed by Michelle H.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Never disappoints !!

My daughter showed me this product and I’m obsessed!! They are so comfy and functional. But also pretty!!! I’ve ordered several times and I wear nothing else now.

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Reviewed by Dryver R.
I recommend this product
Rated 5 out of 5
Review posted

AMAZING!

they were really leak proof and we’re SO comfy 10/10 I really do recommend! 👍🏻

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Reviewed by Elaine A.
Verified Buyer
I recommend this product
Rated 4 out of 5
Review posted

Teen Leakproof Active Leggings

Love them!

Looked really small when first out of package but fit perfectly.

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Reviewed by Miley
Rated 3 out of 5
Review posted

3 Stars

They are a very nice quality! But i ordered a size small, and the length is perfect but the waistband is super thick and not very stretchy so it is way too tight

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Reviewed by Tamsyn F.
Verified Buyer
I don't recommend this product
I'm a...
Parental Figure
I purchased for...
A Teenager/Tween
Pant Size
Teen 12-16
Size Purchased
XL
Rated 2 out of 5
Review posted

Small low waisted

Was expecting them to be higher waisted and the fit very small for the sizing. Had to give them to a friend. The fabric is great quality good but sizing is off(I’m apple shaped so legs are not a problem but these probably 2 sizes too small)

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Quality
Rated 5 out of 5
Comfort
Rated 2 out of 5
Sizing
Rated -2 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 3 out of 5
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