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Light Leakproof UltraThin No-Show Thong
Sale
Light Leakproof UltraThin No-Show Thong
$21.60
CAD
$27.00
20-30% off
Absorbs about 2 regular tampons
Invisible under clothes
More absorbency without bulk
Machine washable
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.
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Product Description
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 regular underwear.
Zoom
How to Choose?
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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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
Middle Layer
Leakproof Layer
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How to wash
Knix underwear is 100% reusable and machine washable, just like your regular undies.
Not required. But for best results, you can rinse your leakproof with cold water in the tub or sink before washing.
Machine wash on a cold, gentle cycle with mild detergent.
For their longest life, air drying is best. Hang or lay flat to dry.
Fabric softeners, bleach, ironing, or heat from the dryer.
Total 5 star reviews: 161 Total 4 star reviews: 22 Total 3 star reviews: 22 Total 2 star reviews: 15 Total 1 star reviews: 38
73%would recommend these products
258 reviews
- Rated 5 out of 5 stars3 days agoThese are great!
Very comfortable and good moisture control for sweat, leaks and period back up.
Rochelle B.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong - Rated 5 out of 5 stars3 weeks agoA must have!
The rise is great for lower rise pants. They fit like a second skin and stay in place all day. They wash up great, and are quick to air dry. These and the high rise version are the only underwear I wear now!
Jessica A.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong - Rated 5 out of 5 stars3 weeks agoThong
I didn’t think you could get much leakage coverage from a thong but I think they did the best they could with it. It’s more than I thought it could be. Glad I gave them a try.
MDVerified BuyerReviewingLight Leakproof UltraThin No-Show Thong - Rated 5 out of 5 stars3 weeks ago5 Stars
These are the best thing !
FeliciaReviewingLight Leakproof UltraThin No-Show Thong - Rated 5 out of 5 stars1 month agoLOVE THESE
Wow, these are a gift made from women, for women! No leaks, used on my day 3-5 of my period with no additional products. LOVE!
Sara R.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong - Rated 5 out of 5 stars2 months agoRepeat Customer
Works well!
Kaitlyn E.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong - Rated 5 out of 5 stars2 months agoSoo comfy
These are way comfier than the super protection they arent as tight and cause less chafing.
Morgan S.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong - Rated 5 out of 5 stars2 months agoNo-Show, No-Stress, No-Regrets
Who knew a thong could be this impressive?
The Light Leakproof UltraThin No-Show Thong is ridiculously comfortable — soft, smooth, and truly invisible under clothes. No digging, no shifting, no drama.
The fabric feels amazing (zero irritation), and somehow it still manages to be protective without feeling bulky. The leak protection is discreet but reliable — which means peace of mind without sacrificing cute.
And can we talk about laundry? It washes beautifully and holds its shape like a champ. No stretching out, no weird warping — just consistent comfort.
Basically: sleek, secure, and secretly hardworking. 10/10 would buy again.
Jody G.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong - Rated 5 out of 5 stars2 months agoPretty and comfy!
I was surprised by how much I loved these! I had to order several more!
Linda B.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong - Rated 5 out of 5 stars2 months agoThongs
I love the fit of the thongs and also the assurance of no leakage!
Carol D.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong - Rated 5 out of 5 stars2 months agoComfortable
I was told to size down because they stretch out a bit, so I got the small instead of medium. Comfortable and no leakage when wearing them without any other period product as back up
Jenn P.Verified BuyerReviewingLight Leakproof UltraThin No-Show Thong - Rated 5 out of 5 stars2 months agoWife approved
I began to research underwear for built in absorption for the wife. After two kids, she has issues with leakage in certain situations and to counter this, she uses panty liners. These liners are not bad but not the best to use. I figured built in liners would likely be more sanitary and comfortable so I purchased her these thongs for Christmas. I like the colors and simply selected the correct size. The price was also a positive.
She has truly enjoyed them so I purchased a thicker absorption pad panty. We will see how much she enjoys those.
She likes the fit of the no show and feel of the stretchy fabric. She does warn on making sure to get the appropriate size because she thinks they will be constrictive if you get a size too small. She enjoys wearing them and I enjoy seeing her in them.
Wife and husband approved.
Jimmy R.Verified BuyerReviewingPOS - Light Leakproof UltraThin No-Show Thong Shimmer 3-Pack
