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| Black

Light Leakproof No-Show Bikini

$25.00 CAD

Color: Black

Best Seller

Color: Black

Size:

Mix & Match: 3+ for $20 each

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Home / All Underwear / Leakproof UltraThin No-Show Bikini

Kristen's Fave

Leakproof UltraThin No-Show Bikini

$27.00 CAD

Mix & Match: 3+ for $25 each

Absorbs about 2.5 super tampons

Invisible under clothes

Moderate protection without the bulk

Machine washable

Amber has 46” hips, and wearing KNIX L | Warm Sand

Amber has 46” hips, and wearing KNIX L | Warm Sand

Amber has 46” hips, and wearing KNIX L | Warm Sand

Amber has 46” hips, and wearing KNIX L | Warm Sand

Amber has 46” hips, and wearing KNIX L

Amber has 46” hips, and wearing KNIX L | Warm Sand

Amber has 46” hips, and wearing KNIX L

Amber has 46” hips, and wearing KNIX L | Warm Sand

Amber has 46” hips, and wearing KNIX L

Amber has 46” hips, and wearing KNIX L

Kristen's Fave

Leakproof UltraThin No-Show Bikini

$27.00 CAD

Mix & Match: 3+ for $25 each

Absorbs about 2.5 super tampons

Invisible under clothes

Moderate protection without the bulk

Machine washable

Absorbency: Moderate

Moderate

about 2-3 super tampons

about 1-3 regular tampons

about 3-6 super tampons

about 7-9 super tampons

Color: Warm Sand

Size:

True to Size

•

Leakproof Underwear is Sales Tax Free in Canada*

Free Shipping on orders $100+

Easy Exchanges within 30 Days

Rewards Members Earn 27 Points

"These are my favorite of all the period underwear styles I have tried, and I now own enough for a full cycle of wear."

- InStyle

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Amber is a 36C and wearing KNIX L | Warm Sand

Revolution V-Neck Bra

Comfort-First Fit

Bikini silhouette with a classic mid-rise fit, medium hip and bum coverage.

Worry-Free Protection

Worry-Free Protection Our newest leakproof innovation provides more absorbency without the bulk. Patented 360 LeakSeal™ technology locks in leaks at every edge.

Moderate Absorbency

Absorbs 2.5 super tampons worth of liquid—perfect for moderate flow days, light bladder leaks, and sweat. The carbon cotton gusset top layer keeps you dry.

No-Show Style

Made from our signature buttery soft fabric with a wide, comfortable waistband. Wear it on its own or under your favorite pajamas.

Easy to Wash

Machine washable just like regular underwear.

Your Perfect Fit

The fabric feels snug at first but relaxes after washing and wearing, resulting in a perfect fit.

Machine Washable

Wash with like colors on a cold cycle using a mild detergent. Do not bleach, dry clean, or iron. Tumble dry on low.

Fabric

Body: 77% Nylon, 23% LYCRA® XTRA LIFE™Spandex; Fresh Fix Technology® Gusset: Gusset 1: 86% Cotton, 10% Spandex, 4% Carbon; Gusset 2: 96% Polyester, 4% Spandex; Gusset 3: 83% Polyester, 11% Spandex, 6% Polyurethane

Additional Product Ingredient Information

Amber has 46” hips, and wearing KNIX L | Warm Sand

Amber has 46” hips, and wearing KNIX L | Warm Sand

Amber has 46” hips, and wearing KNIX L | Warm Sand

• Everyday Wear
• No leakproof protection

0 tsp

• heavy period days
• overnight protection
• light bladder leaks

6-11 tsp
about 1.5-3 regular pads
about 3-6 super tampons
about 1-2 menstrual cups

• light period days
• sweat
• sweat and discharge

about 1-3 tsp
about 1-3 pantyliners
about 1-3 regular tampons
about 0.5 menstrual cups

• moderate period days
• light bladder leaks
• sweat

about 3-6 tsp
about 1-1.5 regular pads
about 2-3 super tampons
about 0.5-1 menstrual cups

• extra heavy period days
• overnight protection
• light bladder leaks

13-17 tsp
3.5-4.5 regular pads
7-9 super tampons
2-3 menstrual cups

FRESH FIX TECHNOLOGY®

Built-in protection that feels like nothing at all.

Our patented 360 LeakSeal™ technology locks in leaks at every edge. The ultra-thin liner absorbs about 2.5 super tampons worth of liquid.

Soft Top Layer

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

Middle Layer

Leakproof Layer - Moderate

Leakproof Layer

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4.5

Rated 4.5 out of 5 stars

Based on 499 reviews

Total 5 star reviews: 373 Total 4 star reviews: 55 Total 3 star reviews: 28 Total 2 star reviews: 20 Total 1 star reviews: 23

89%would recommend these products

ComfortRated 4.5 on a scale of 1 to 5

EffectivenessRated 4.5 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

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499 reviews

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Rated 5 out of 5 stars
3 days ago
Great!
These are great for my teen who is a dancer. She loves them under her bodysuit and they are actually no-show which is amazing!
Megan B.
Verified Buyer
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Rated 5 out of 5 stars
3 weeks ago
Just perfect !
Love the fit and comfort!
Jessica B.
Verified Buyer
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Rated 3 out of 5 stars
3 weeks ago
Def not leakproof
Leaked out the sides, although not that much transferred to my pants. The underwear material caught most of it. Still dry at top and bottom so not a case of too much flow for the underwear.
Cheryl M.
Verified Buyer
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Rated 5 out of 5 stars
3 weeks ago
My daughter loves them!
My daughter loves them and wears them all the time, period or not. She wears the beige for all dance competitions and it always gives her a peace of mind.
Katy
Verified Buyer
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Rated 5 out of 5 stars
3 weeks ago
Teen Bikini
Very comfortable.
Julie L.
Verified Buyer
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Rated 5 out of 5 stars
4 weeks ago
Very Happy W/ Purchase
These panties are very comfortable and perfect for work during those long hot nasty days where u want some freshness and they put ur mind at ease.
Lauran L.
Verified Buyer
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Rated 4 out of 5 stars
4 weeks ago
LOVE
a game changer
Cassidy G.
Verified Buyer
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Rated 5 out of 5 stars
4 weeks ago
5 Stars
Nice fabric and very comfortable.
Rosa
Verified Buyer
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Rated 5 out of 5 stars
4 weeks ago
I love this underwear
The leak proof is also amazing for sweating. I wear nothing else now. And only Knix brand. They work the best. They have helped me reduce the number of UTI’s I can ride my bike again, and garden with out having to go dry off and change all the time.
Jo-Anne G.
Verified Buyer
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Rated 5 out of 5 stars
4 weeks ago
Excellent for dance!
Purchased these underwear for my daughter who is competitive dance. They are the perfect solution to allow her to feel confident dancing without the worry. Highly recommend and will continue to purchase more. Can’t wait for her to try out their swimwear.
Lisa C.
Verified Buyer
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Rated 3 out of 5 stars
1 month ago
Sizing is off
I’ve purchased the ultra thin underwear and never had any issues. However it seems the sizing of this pair is off. The large on these ones is smaller compared to my other pairs.
Krystle S.
Verified Buyer
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Rated 5 out of 5 stars
1 month ago
Such a pretty colour and so effective
These are great for a lighter period day, and the colour is gorgeous.
Alka B.
Verified Buyer
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