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KnixTeen

Teen Leakproof Active Short

$45.00 CAD

Stretch performance fabric

High-rise waistband

Absorbs about 2.5 super tampons

Front view of model wearing the Teen Leakproof Active Short highlighting the coverage and fit
Teen Leakproof Active Short shown front-facing against a light gray background
Back view of model wearing the Teen Leakproof Active Short highlighting the coverage and fit
Front view of model wearing the Teen Leakproof Active Short highlighting the coverage and fit
Washes just like regular activewear
Mesh liner with FreshFix Technology Gusset

Color: Black

Size:

True to Size

•

Size:

Size and Fit Guide

Free Shipping on orders $125+

Shipping

Shipping

Processing Timelines

Please allow 1-2 business days for our warehouse team to pack and ship your order. During peak periods such as sales, holidays and product launches, please allow up to 4 business days for us to process your order.

Delivery Time

For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines vary depending on location and do not include processing times.

Shipping Charges

Orders over $125* CAD = Free Shipping (2-6 business days)

Orders under $125* CAD = $12 CAD Shipping (1-3 business days)

Orders delivering to NWT, Nunavut and Yukon are subject to $20 delivery fee.

*After discounts, before shipping and taxes.

Easy Returns within 30 Days

Apparel, Sleep & Swim

Returns & Exchanges

Holiday Return Policy
Eligible items purchased online or in stores between November 2, 2026 and December 31, 2026 may be returned through January 29, 2027. All other purchases fall under our 30 day Returns Policy.

Standard Return Policy
Apparel (excluding Shapewear), sleep and swim are eligible for return or exchange within 30 days of delivery with tags attached. Swim bottoms and one-pieces must have the original sanitary strip intact.

Still have questions? View our full policy here.

Rewards Members Earn 45 Points

Product Description

No more missing gym class! This is your teen’s new favorite short for every activity and every period. Stretchy, comfortable and true to size. New liner shape for a discreet look from the outside and a seamless look all over.

Functional Style

Stretchy and comfortable shorts with a high-rise waistband.

Moderate Absorbency

Stretch performance fabric and built-in leakproof protection absorb about 2.5 super tampons worth of liquid.

Zoom

How to Choose?

Essential

  • • Days you don’t need leak protection. Everyday freshness and moisture wicking.
  • tsp
    0 tsp

Heavy

  • • Extra peace of mind. For the first days of your cycle, light bladder leaks, or a full night's sleep without a leak.
  • tsp
    about 8-14 tsp
  • pad
    about 1.5-3 regular pads
  • tampon
    about 4-7 super tampons
  • cup
    about 1.5-3 menstrual cups

Light

  • • Daily freshness. For sweat, discharge, period spotting, or backup protection.
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

  • • For mid-cycle flow, surprise cough or sneeze leaks, or a really sweaty spin class.
  • tsp
    about 4-8 tsp
  • pad
    about 1-1.5 regular pads
  • tampon
    about 2-4 super tampons
  • cup
    about 0.5-3 menstrual cups

Ultra

  • • Ultimate peace of mind. For the heaviest period days, light bladder leaks, unexpected postpartum flow, or overnight protection.
  • tsp
    about 15-20 tsp
  • pad
    about 1.5-2.5 super pads
  • tampon
    about 7-11 super tampons
  • cup
    about 2-3 menstrual cups
FRESH FIX TECHNOLOGY®

Built-in protection that feels like nothing at all.

Absorbs about 2.5 super tampons.

Soft Top Layer

The carbon cotton gusset layer gently wicks away moisture from your skin, keeping you feeling fresh and odor-free.

4.1
Rated 4.1 out of 5 stars
Based on 18 reviews
78%would recommend this product
ComfortRated 4.0 on a scale of 1 to 5
FitRated -2.0 on a scale of minus 2 to 2
EffectivenessRated 5.0 on a scale of 1 to 5
Keywords
Keywords
Rating
Ratings
Height
Height
Usual Teen Pant Size
Usual Teen Pant Size
How do you use your Leakproof?
How do you use your Leakproof?
18 reviews
  • Rated 5 out of 5 stars
    3 weeks ago
    Teen VB loves them

    Great for sports.

    LD
    Lynn D.
    Verified Buyer
  • Rated 5 out of 5 stars
    9 months ago
    Better than the running shorts I was using to work out

    I would wear these by themselves just to work out! V good and snug. No weird padding lines in the back, n camel-toe proof!

    KB
    Katharine B.
    Verified Buyer
  • Rated 5 out of 5 stars
    9 months ago
    Active shorts

    My daughter loves these for gym, soccer, etc!

    SC
    Stephanie c.
    Verified Buyer
  • Rated 5 out of 5 stars
    9 months ago
    Amazing

    Great product

    LS
    Lindsay S.
    Verified Buyer
  • Rated 5 out of 5 stars
    11 months ago
    Great shorts

    Great shorts my daughter loves them for gym

    DH
    Danielle H.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 year ago
    Volleyball!!

    So relieved to find these for volleyball !!

    KC
    Kristin C.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 year ago
    Volleyball!!

    So relieved to find these for volleyball !!

    KC
    Kristin C.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 years ago
    Review

    Fantastic product! I'm also quite impressed by your customer service:)

    SR
    Shabnam R.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 years ago
    Review

    Fantastic product! I'm also quite impressed by your customer service:)

    SR
    Shabnam R.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 years ago
    my daughter Chloe loves them

    my daughter loves the sports period sport underwear

    CN
    Chloe N.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 years ago
    my daughter Chloe loves them

    my daughter loves the sports period sport underwear

    CN
    Chloe N.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 years ago
    Game changer

    I’m so thrilled with these shorts! When I gave them to my daughter for soccer practice, I told her a story about her grandma sliding into second base and her sanitary napkin sliding out of her shorts. You’ve given such a gift to young women with your products. Thank you

    NG
    Nichole G.
    Verified Buyer