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Underwear By Absorbency
Light
Drop
Drop
Drop
Drop
Drop

Absorbs 1-3 regular tampons
Moderate
Drop
Drop
Drop
Drop
Drop

Absorbs 2-4 super tampons
Heavy
Drop
Drop
Drop
Drop
Drop

Absorbs 4-7 super tampons
Leakproof Explained
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5 Reasons to Wear Leakproof
Sleepover Boxer

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| Black
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Holds up to 7 pairs of undies

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Home / Light Absorbency / Light Leakproof No-Show Bikini 3-Pack
Bundle Deal

Light Leakproof No-Show Bikini 3-Pack

$60.00 CAD

$66.00

Great Savings
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Absorbs about 1 regular tampon

Checkmark

Invisible under clothes

Checkmark

Ideal for everyday wear

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Machine washable

| Pastel Wings/Pink Orchid/Blush
| Pastel Wings/Pink Orchid/Blush
| Pastel Wings/Pink Orchid/Blush
| Pastel Wings/Pink Orchid/Blush

Absorbency: Light

Light
Drop
Drop
Drop
Drop
Drop
about 1-3 regular tampons
Moderate
Drop
Drop
Drop
Drop
Drop
about 2-4 super tampons
Heavy
Drop
Drop
Drop
Drop
Drop
about 4-7 super tampons

Color: Pastel Wings/Pink Orchid/Blush Limited Edition

Size:

True to Size

•

Size:

Size and Fit Guide

Leakproof Underwear is Sales Tax Free in Canada*
FREE Shipping on orders $100+

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. Once an order is placed, we cannot guarantee any address updates, order changes or cancellations. Orders placed on Friday after 1PM will not be shipped until the following Monday.

Most orders will ship from a single warehouse. However, we occasionally ship from a combination of warehouse locations, so you may receive your order in multiple parts. If items from your order ship in separate packages, we’ll send you tracking information for each package when it becomes available.

Delivery Timelines

For the most up to date delivery time estimates, please refer to the shipping timeline at checkout. All transit times are measured in business days which are Monday-Friday, excluding holidays.

Please note, all shipping timelines are estimates and are not guaranteed.

Canadian Orders

Orders within Canada will be shipped with Canada Post or Purolator based on your address and carrier availability.

Standard Canadian shipping is free on eligible orders over $100 CAD*. Orders under $100 CAD are $12 CAD for standard shipping. Orders delivering to NWT, Nunavut, and Yukon under $100 CAD* are $20 CAD for standard Canada shipping.

*After discounts, before shipping and taxes
First Pair Risk-Free Policy

First Pair Risk Free for 30 Days

First Pair Risk-Free Policy

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 a standard refund* (excluding original shipping fees).

All unopened packages will be donated to local organizations to support people in need.
"These went from bedtime-only to everyday essentials. They’re so comfortable and discreet she even wears them under dance leotards. Thank you, Knix, for replacing anxiety with confidence."

- Kristin C.

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Comfort-First Fit

Bikini silhouette with a classic mid-rise fit, medium hip and bum coverage. Designed specifically for teens and tweens, so may fit smaller than styles made for adults.

Absorbency Level: Light

Absorbs 1 regular tampon worth of liquid—perfect for light period days, light bladder leaks, and sweat. The carbon cotton gusset top layer wicks away moisture from your skin.

Discreet

Made from our signature buttery-soft fabric and designed to be invisible under clothes, including leggings.

Easy to Wash

100% reusable and machine washable, just like regular underwear.

Zoom

| Pastel Wings/Pink Orchid/Blush
| Pastel Wings/Pink Orchid/Blush
| Pastel Wings/Pink Orchid/Blush
| Pastel Wings/Pink Orchid/Blush

How to Choose?

Heavy

Drop
Drop
Drop
Drop
Drop
  • • Perfect for overnight protection or your teens heaviest days when changing into a fresh pair might not be convenient.
  • 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

Drop
Drop
Drop
Drop
Drop
  • • Ideal for lightest period days, spotting, sweat and discharge.
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

Drop
Drop
Drop
Drop
Drop
  • • Ideal for medium period days, discharge and sweat.
  • 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

Drop
Drop
Drop
Drop
Drop
  • • Ultimate peace of mind. For the heaviest period days 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
LOVED BY TEENS. TRUSTED BY PARENTS. 

Why leakproof?

Built-in protection that helps teens feel secure on their period. The science behind the #1 Leakproof Brand in North America.

Soft Top Layer

Soft top layer

Comfy, super smooth moisture-wicking liner keeps you feeling fresh and dry.

Easy to Wash

100% reusable and machine washable, just like regular underwear.

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4.7
Rated 4.7 out of 5 stars
Based on 35 reviews
Write a Review (Opens in a new window)
35 reviews
  • Rated 4 out of 5 stars
    2 months ago
    High price point for light absorption

    My daughter likes the material but the fit is too small. For a product that can’t be returned, whyyy is the sizing so varied from other brands? Generally she is down to pads for the lighter days so this buy feels like a mistake. Cute patterns at least?

    Kristen A.
    Was this helpful?
  • Rated 5 out of 5 stars
    3 months ago
    Wonderful!

    Feels good and does the job!

    Marianna B.
    Was this helpful?
  • Rated 5 out of 5 stars
    3 months ago
    Bought for my daughter

    She absolutely loves how comfortable they are!

    Crystal Z.
    Was this helpful?
  • Rated 5 out of 5 stars
    4 months ago
    So soft

    Very comfortable and soft

    Janelle M. W.
    Was this helpful?
  • Rated 5 out of 5 stars
    5 months ago
    Super cute

    Love these and in these fun colors

    Dashton G.
    Was this helpful?
  • Rated 5 out of 5 stars
    5 months ago
    Comfy, supportive and leakproof

    Super, super comfortable! The fabric is soft and stretchy. Can be worn under clothes and can't see the outline of underwear. Ordered light absorbancy and works well for end of period or light flow. Would order again!

    Elsa M.
    Was this helpful?

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