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ACOTAR x KNIX Culotte string extra-fine anti-fuites invisible
ACOTAR™ x Knix
ACOTAR x KNIX Culotte string extra-fine anti-fuites invisible
$27.00
CAD
Achetez 3 et plus, économisez 15 %, achetez 5 et plus, économisez 20 %
Absorbe l'équivalent d'environ 2 tampons ordinaires
Invisible sous les vêtements
Plus absorbant, sans volume supplémentaire
Lavable en machine
Size and Fit Guide
How to Measure
In order to select the correct sizing, we recommend you take the following measurements using a soft tape measure. If necessary, ask someone else to help.
Waist
Measure around the narrowest part of your torso, usually just above your belly button. Keep the tape snug and level, but not tight. The number where it meets is your waist measurement.
Hip
Stand with your feet together and measure around the fullest part of your hips and buttocks. Keep the tape level and snug, but not tight. The number where it meets is your hip measurement.
Les sous-vêtements antifuites sont exempts de taxe de vente au Canada*
Build Your 3-Pack
ACOTAR x KNIX Culotte string extra-fine anti-fuites invisible
ACOTAR x KNIX Culotte string extra-fine anti-fuites invisible
ACOTAR x KNIX Culotte string extra-fine anti-fuites invisible
Get It Before It's Gone
ACOTAR™ x Knix
Get It Before It's Gone
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Part of the limited-edition ACOTAR™ x Knix Collection
Comfort-First Fit
Thong silhouette sits lower on the hip with minimal bum coverage.
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
It absorbs about 2 regular tampons worth of liquid—great for regular flow days, light bladder leaks, and sweat.
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 your regular underwear.
ACOTAR™ is a trademark of Fireheart Inc. ©2015-2026, Sarah J. Maas.
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Comment choisir ?
Essential
- • Days you don’t need leak protection. Everyday freshness and moisture wicking.
-
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.
-
about 8-14 tsp
-
about 1.5-3 regular pads
-
about 4-7 super tampons
-
about 1.5-3 menstrual cups
Light
- • Daily freshness. For sweat, discharge, period spotting, or backup protection.
-
about 1-3 tsp
-
about 1-3 pantyliners
-
about 1-3 regular tampons
-
about 0.5 menstrual cups
Moderate
- • For mid-cycle flow, surprise cough or sneeze leaks, or a really sweaty spin class.
-
about 4-8 tsp
-
about 1-1.5 regular pads
-
about 2-4 super tampons
-
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.
-
about 15-20 tsp
-
about 1.5-2.5 super pads
-
about 7-11 super tampons
-
about 2-3 menstrual cups
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Recently Viewed
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 5 months ago
Customers say these thongs are comfortable and provide good light leak protection for everyday wear, gym activities, and light period days. Many appreciate the no-show design under leggings and the soft, seamless feel. However, sizing issues are frequently mentioned, with many reviewers finding them smaller than expected and recommending sizing up. Some note the material feels stiffer than other styles, and several mention inconsistent sizing across colors. While most praise the moisture control and confidence they provide, a few find the absorbent panel too thick or positioned incorrectly. The thongs wash well and maintain their shape, though some experience durability issues after 1-2 years.
73%would recommend these products
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301 reviews
- Rated 5 out of 5 stars4 minutes agoBring Back More Styles
I love Knix underwear, it’s the only thing in my drawer. I would like to see more variety, however, not just boring black and nude. I’ve been wearing Knix underwear for at least six years now and I have had some very pretty pairs that just don’t seem to exist anymore. I have thong pairs that have a beautiful lace back to them and I don’t see any like that anymore. Please bring back the lacy, pretty thong underwear in anything but black and nude.
KKariVerified ReviewerReviewingLight Leakproof UltraThin No-Show Thong - Last Call - Rated 5 out of 5 stars5 days agoLeakproof No-show Thong
Great fit. LOVE the color.
DJDelsheta J.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong Mulberry / XL - Rated 5 out of 5 stars2 weeks agoNice and Sleek
Love neutral colors and fits great.
KGKylleesha G.Verified BuyerReviewingPOS - Light Leakproof UltraThin No-Show Thong (Alt Skus) Black / L - Rated 5 out of 5 stars3 weeks agoComfy
No show comfy
CBCindy B.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong Black / S - Rated 5 out of 5 stars3 weeks agoNeutral colors
Love it and happy with the feel.
KGKylleesha G.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong Black / L - Rated 5 out of 5 stars1 month agoBest underwear!
I thought these fit a little smaller than the brief cut but after wearing them, they are my new favourites! Comfortable, invisible and great for light flow days!
HAheather A.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong Black / S - Rated 5 out of 5 stars1 month ago5 Stars
Nice fit
NNadiaReviewingLight Leakproof UltraThin No-Show Thong Warm Sand / M - Rated 5 out of 5 stars1 month ago5 Stars
Great underwear
NNadiaReviewingLight Leakproof UltraThin No-Show Thong Black / M - Rated 5 out of 5 stars1 month ago5 Stars
This is such a pretty colour. Great fit
NNadiaReviewingLight Leakproof UltraThin No-Show Thong - Rated 5 out of 5 stars1 month ago5 Stars
Great fit. Amazing feel
NNadiaReviewingLight Leakproof UltraThin No-Show Thong - Last Call - Rated 5 out of 5 stars1 month ago5 Stars
These are so comfy! I love Knix.
NNadiaReviewingLight Leakproof UltraThin No-Show Thong Sola / M - Rated 5 out of 5 stars2 months agoPerfect fit for under active wear.
As a dancer/choreographer I love these light leak proof ultra thin thongs. They are a staple in my drawer. They wear beautifully and are comfortable to wear under leggings, jazz pants, or a ballet leotard. For me they just work and wouldn't switch to anything else.
KBKim B.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong Black / M
