Shop by Style

More Ways to Shop

Need Help Choosing?
Why Knix Leakproof Works

Bras

Need Help Choosing?
Find Your Bra Size

Sale

New Arrivals
New: SculptRib™
NEW Shape & Smooth Bra
Shop by Life Stage

Your Bag

Your cart is empty

But you're full of potential..
Create an account to join Club Knix and earn points on this order

Suggestions

Top Picks

Revolution V-Neck Bra

$68.00 CAD
10% off Bra & Underwear Sets*

Color: Meadows Limited Edition

+10

Super Leakproof® Dream Boxer™

$48.00 CAD
Buy 3+ Save 15%, Buy 5+ Save 20%

Color: Lavender Stripe Limited Edition

+1

Leakproof UltraThin No-Show High Rise

$32.00 CAD
Buy 3+ Save 15%, Buy 5+ Save 20%

Color: Meadows Limited Edition

+5

Uplift Push Up Bra

$78.00 CAD
10% off Bra & Underwear Sets*

Color: Rose Water

+1
Home / Thong Underwear / Light Leakproof Lace Thong - Last Call
Sale

Light Leakproof Lace Thong - Last Call

$17.50 CAD

$25.00

30-50% off

Absorbs about 1 regular tampon

Intricate lace details

Perfect for daily wear

Machine washable

| Dark Cherry
| Dark Cherry
| Dark Cherry
| Dark Cherry
| Dark Cherry

Absorbency: Light

Color: Dark Cherry

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.
Last Call Return Policy

Sale & Last Call

Sale & Last Call

Items discounted 30% and below are eligible for size exchange or store credit. Items discounted above 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.
Rewards Members Earn 17 Points

"I genuinely thought my thong days on my period were over. But there I was, rocking my jeans with zero leaks, no worries, and full comfort and confidence."

- Glamour

Zoom

| Dark Cherry
| Dark Cherry
| Dark Cherry
| Dark Cherry
| Dark Cherry

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

Explore Best-Sellers

Shop All

Revolution V-Neck Bra

$68.00 CAD
10% off Bra & Underwear Sets*

Color: Black

+10

Super Leakproof® Dream Boxer™

$48.00 CAD
Buy 3+ Save 15%, Buy 5+ Save 20%

Color: Blue Stripe

+1

WingWoman Contour Bra

$75.00 CAD
10% off Bra & Underwear Sets*

Color: Black

+2

Super Leakproof® Dream Short™

$48.00 CAD
Buy 3+ Save 15%, Buy 5+ Save 20%

Color: Warm Sand

+3

Uplift Push Up Bra

$78.00 CAD
10% off Bra & Underwear Sets*

Color: Rose Water

+1

Leakproof UltraThin No-Show Bikini

$27.00 CAD
Buy 3+ Save 15%, Buy 5+ Save 20%

Color: Lavender Limited Edition

+6

Catalyst Sports Bra

$85.00 CAD
10% off Bra & Underwear Sets*

Color: Black

HiTouch™️ High Rise Legging

$90.00 CAD

Color: Twilight Navy

+2
4.4
Rated 4.4 out of 5 stars
Based on 21 reviews
Total 5 star reviews: 17 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 3
86%would recommend these products
ComfortRated 4.4 on a scale of 1 to 5
EffectivenessRated 4.4 on a scale of 1 to 5
FitRated -0.2 on a scale of minus 2 to 2
Ease of UseRated 4.6 on a scale of 1 to 5
Write a Review (Opens in a new window)
21 reviews
  • Rated 5 out of 5 stars
    2 weeks ago
    Comfortable

    The material is soft and fit comfortably and true to size.

    Angela K.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    6 months ago
    Sexy but Functional!!

    These lacy thongs are so comfortable and give me peace of mind. They are not too bulky and don’t dig in. I can’t believe that I own sexy functional underwear now!

    Jennifer K.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    7 months ago
    Super comfy!

    This is hands down the best thong Knix has made. Great fit, love the lace design!

    Jess S.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    8 months ago
    Beautiful and comfortable

    These are amazing! Beautiful and comfortable. They are perfect for the light days!

    Tiffany T.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    9 months ago
    Super Comfy

    I love these - I think they're really comfortable and have been so great for light days as my primary method or as a backup on other days. I did size up to a M when I tend to be a S because my booty is bigger nowadays after hitting the gym and I'm glad I did.

    Maddy M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    10 months ago
    GOSSAMER THONGS

    I LOVE ALL MY GOSSAMER THONGS. I HAVE THE LIGHT LEAKPROOF AND THE BASICS FOR THOSE DAYS I FEEL LIKE I DON'T NEED THE LIGHT LEAKPROOF SAFETY NET. THE GOSSAMER LACE IS THE BEST. I CAN ONLY HOPE THAT KNIX WILL MAKE THE LEAKPROOF GOSSAMER LACE THONGS IN ALL COLORS AVAILABLE UNDER THE BASIC.

    JOAN F.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    11 months ago
    Super comfy!

    Bets pair yet!

    Amanda B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    11 months ago
    GOSSAMER LACE THONG AND BIKINI

    I LOVE THE GOSSAMER LACE. HAVE BEEN WEARING THE BIKINIS BUT THOUGHT I WOULD GO BACK TO THONGS. LOVE THIS THONG. HAVE PURCHASED THE NEW COLORS TOO! SO VERY HAPPY!

    JOAN F.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    12 months ago
    My favorite

    Very very comfortable, love the color matches bra perfect. Nice set.

    Nancy S.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    Light leakproof lace thong

    I really like this one! Some of your others seemed to stretch out this one seems tighter but not too tight! Great fit!

    Lisa D.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    Lovely thong

    I used this under my running tights, feels like nothing on. They are beautiful. Fit well

    Maria F. T.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 year ago
    Best thong ever!

    Please don’t ever stop selling this product!! So comfortable yet sexy! I’ve just recently started wearing thongs. I’ve needed the extra leakage lining for years and was too self-conscience to try a thong with a pantry liner. This is the most comfortable thong I’ve ever worn and the lining isn’t bulky (wearing the light version). I just need a little extra protection and these are PERFECT!

    Christy H.
    Verified Buyer
    Was this helpful?

Your questions, answered.

Shop by Category

Bras

Leakproof Underwear

Sleep

New Arrivals

Best Sellers

Apparel

Active

Shapewear

Mens

Teen