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Bundle Deal

Light Leakproof No-Show Bikini 3-Pack

$60.00 CAD

$75.00

Save $15

3-pack underwear

Absorbs about 1 regular tampon

Invisible under clothes

Perfect for daily wear

Machine washable

| Twilight Navy/Blue Light/White
| Twilight Navy/Blue Light/White
| Twilight Navy/Blue Light/White
| Twilight Navy/Blue Light/White
| Twilight Navy/Blue Light/White
| Twilight Navy/Blue Light/White

Color: Twilight Navy/Blue Light/White 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.

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 $100* CAD = Free Shipping (2-6 business days)

Orders under $100* 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.

First Pair Risk Free for 30 Days

Leakproof Underwear, Risk Free

Returns & Exchanges

New to leakproof? Your first pair is risk free for 30 days. Wear them, wash them, and see how they work for your body. Not right for you? We'll refund the item price (original shipping excluded). Prefer a different size or style? We also offer free exchanges. Just email info@knix.com and we'll take care of you.

Purchased leakproof before? Within 30 days of delivery you can exchange for another size, style, or store credit. We're unable to provide refunds on underwear. If you ordered multiple pairs, please open, wash, and wear one pair only before initiating an exchange.

Still have questions? View our full policy here.

Rewards Members Earn 60 Points

Product Description

So thin, you’ll forget you’re wearing anything. This style has medium bum and hip coverage. Our original leakproof technology offers a barely-there feel while absorbing about 1 regular tampon or pantyliner worth of liquid. Patented bonded edges help prevent against side leaks. These underwear feature our signature buttery soft fabric. No show construction is designed to be invisible under clothes, including workout leggings.

Comfort-First Fit

Boyshort silhouette with a mid-rise fit and extra hip and bum coverage.

Worry-Free Protection

Our original leakproof technology provides a barely noticeable feel. Patented bonded edges help prevent side leaks.

Light Absorbency

Absorbs 1 regular tampon worth of liquid—perfect for light flow days, sweat and discharge, and backup protection for heavy flow days.

No-Show Style

Buttery-soft and smooth fabric gives a seamless look and feel. Disappears under clothes, even leggings.

Easy to Wash

Machine washable just like regular underwear.

Zoom

| Twilight Navy/Blue Light/White
| Twilight Navy/Blue Light/White
| Twilight Navy/Blue Light/White
| Twilight Navy/Blue Light/White
| Twilight Navy/Blue Light/White
| Twilight Navy/Blue Light/White

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
PATENTED LEAKPROOF TECHNOLOGY

Built-in protection that feels like nothing at all

Our original Fresh Fix Technology® features a built-in absorbent liner absorbing about 1 regular tampon worth of liquid so you feel fresh and in-control.

Soft Top Layer

Gently wicks away moisture while keeping you feeling fresh and odor-free.

4.5
Rated 4.5 out of 5 stars
Based on 7,072 reviews
Total 5 star reviews: 5.3k Total 4 star reviews: 959 Total 3 star reviews: 394 Total 2 star reviews: 203 Total 1 star reviews: 226
91%would recommend these products
ComfortRated 4.6 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
FitRated -0.1 on a scale of minus 2 to 2
7,072 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    So comfy!

    It is so light and comfy!

    Kristine T.
    Verified Buyer
  • Rated 5 out of 5 stars
    Yesterday
    second order

    ordered a second time . Love my knix.

    Christine V.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 days ago
    Bought a second pack

    Lightweight, no lines, absorbent & quick to dry!

    Tanya F.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days ago
    Best underwear ever!

    I’m not using this for periods, but rather the after-the-kids-later-in-life issues. First of all, these are the most comfortable underwear I have ever worn and the leg openings feel like there is nothing there (I swear my varicose veins are better without the tension). (Large size was comfortable for my daughter and I and our weight ranges from 130-140lbs.) They are completely invisible panty lines too. Yesterday I walked 9 miles in them and never once had to readjust them because they stayed exactly where they should be and were very breathable. They do absorb well and prevent leaks to clothing as well as keeping odor free. It does feel slightly damp for about 15 minutes, but even if you press tissue against a wet pad, nothing will come up, the moisture is immediately locked in, so maybe it’s my brain fooling me. After about an hour the pad seems to dissipate the moisture and the pad is thin again and ready to absorb again. I would never have booked a 3-4 hour tour where I might not find a bathroom before. Amazing technology that I wish I had had growing up, but thankful I have it now!!

    Amy G.
    Verified Buyer
  • Rated 5 out of 5 stars
    6 days ago
    Super cute

    and very thin gusset, perfect for light-leak periods. Size 14 pants needs an XL.

    Kaelyn C.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    Love them!

    I'm so glad I found this brand. I no longer have to purchase panty liners - they are comfortable and make me feel relaxed knowing they do what they are intended to do.

    Natalia V.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    Perfect! These are pretty enough for everyday use and are the perfect absorption. They are easy to wash and do not show. This is my second order

    Great. Comfortable no show. Perfect absorption for stress incontinence without sacrificing style

    Nancy A.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    Smooth and comfortable

    I just ordered more to wear for hot weather or long travel days to help with wicking sweat as well as those I use for period days

    Christine Z.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    great

    use this in the week leading up to my period as well as with a pad for extra protection while on the go

    Jennifer h.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    Comfortable

    These are very comfortable with just the right amount of absorption for daily use.

    Mary S.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    light bleakproof no show bikini

    perfect fit and comfortable

    Alice B.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    Light leakproof underwear

    I have several pairs of these underwear in a variety of colors. They provide daily protection and are extremely comfortable. I highly recommend them!

    Andrea F.
    Verified Buyer

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