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Leakproof Cotton Bikini - Last Call
Only XL-4XL Left
Leakproof Cotton Bikini - Last Call
$18.00
USD
$25.00
28% off
Absorbs about 3 super tampons
Breathable cotton comfort
More absorbent without the 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.
Rewards Members Earn
18 Points
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Comfort-First Fit
Bikini silhouette with a classic mid-rise fit and medium bum coverage.
Worry-Free Protection
Innovative floating liner provides leak protection from every angle.
Moderate Absorbency
Absorbs about 3 super tampons worth of liquid—great for moderate flow days, light bladder leaks, and sweat.
Cozy Cotton-Blend
Soft cotton with a hint of spandex feels luxurious against your skin.
OEKO-TEX® Certified
Easy to Wash
Machine washable just like regular underwear.
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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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Total 5 star reviews: 143 Total 4 star reviews: 15 Total 3 star reviews: 10 Total 2 star reviews: 11 Total 1 star reviews: 8
What our customers are saying
Generated by AI from 100 most recent customer reviews
Last updated 2 days ago
Customers say these cotton leakproof underwear are exceptionally comfortable and feel like regular underwear. Many reviews mention the soft cotton fabric and true-to-size fit, though several suggest sizing up for optimal comfort. Users appreciate the effective protection for periods and bladder leaks without bulk. Common feedback includes praise for all-day comfort and confidence. While most find them comfortable, some note concerns about thick seams showing under tight clothing and the absorbent liner not being fully attached on the sides. Many customers become repeat purchasers, with several ordering multiple pairs after trying them.
85%would recommend this product
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187 reviews
- Rated 5 out of 5 stars2 weeks agoLove
10/10
Katey T.Verified BuyerReviewingLeakproof Cotton Bikini - Last Call - Rated 3 out of 5 stars2 months agoPSA on the liner!
FYI, the liner on this style of underwear is not fully attached to the cotton outerlayer (ie: the pink part). In turn, the liner sometimes shifts, creating zones of "non-protection". I had to DIY sew the liner to the pink part so it wouldn't slip. Liner is leakproof like all of Knix's products, just be warned with this particular model. Lover of my other leakproof underwear from Knix!
JoVerified BuyerReviewingLeakproof Cotton Bikini - Last Call - Rated 5 out of 5 stars2 months agoComfortable
These are very comfortable to wear
Shawna G.Verified BuyerReviewingLeakproof Cotton Bikini - Last Call - Rated 5 out of 5 stars2 months agoPerfect!
These are amazing. Very comfy while giving me peace of mind. I've been slowly replacing all of my regular underwear with Knix!
Alisa R.Verified BuyerReviewingLeakproof Cotton Bikini - Last Call - Rated 2 out of 5 stars2 months ago2 Stars
I am not happy with the construction of these pants. I have bought Knix bikinis for years, and I always found them quite comfortable. I don't know why they changed the way that the pad is connected to the rest of the panty. There is a distinct and uncomfortable crease on the backside of the panty. It causes irritation on my backside. I will be looking for panties somewhere else in the future.
JeanReviewingLeakproof Cotton Bikini - Last Call - Rated 5 out of 5 stars2 months agoVery comfortable
These are comfortable and have good coverage.
Melanie H.Verified BuyerReviewingLeakproof Cotton Bikini - Last Call - Rated 5 out of 5 stars2 months agoPerfection
So comfortable and the fit was perfect. No need for a pad or backup - great protection.
Jennifer H.Verified BuyerReviewingLeakproof Cotton Bikini - Last Call - Rated 1 out of 5 stars2 months agoToo Bulky
The "flying" gusset makes the crotch feel thick and too hot.
It doesn't feel like cotton but rather a polyester blend that isn't kind to your skin.
I won't buy another pair of these.
cassandra h.Verified BuyerReviewingLeakproof Cotton Bikini - Last Call - Rated 5 out of 5 stars2 months agosoft feel and comfort
Bought for my wife, First time wearing, very absorbent and so much more comfortable than wearing a pad
Matthew C.Verified BuyerReviewingLeakproof Cotton Bikini - Last Call - Rated 5 out of 5 stars3 months agoComfy undies
Works well
Rebecca R.Verified BuyerReviewingLeakproof Cotton Bikini - Last Call - Rated 5 out of 5 stars3 months agoTellement douce et confortable
J’en ai 3 paires je les adore pour dormir pour petites fuites urinaire….Tissu de qualité et très douce.
Je recommande…
anne-sophie m.ReviewingLeakproof Cotton Bikini - Last Call - Rated 5 out of 5 stars3 months agoAmazing!
My husband encouraged me to get more of these! We are both happy with them (since he sees how happy I’m in them). The best period solution and so comfortable!
I highly recommend them and am looking forward to relying on them in the future as well.
Aleksander S.Verified BuyerReviewingLeakproof Cotton Bikini - Last Call
