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Leakproof UltraThin No-Show High Rise
Leakproof UltraThin No-Show High Rise
$32.00
USD
Buy 3+ Save 15%, Buy 5+ Save 20%
Absorbs about 2.5 super tampons
Invisible under clothes
Moderate protection 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.
Build Your 3-Pack
Leakproof UltraThin No-Show High Rise
Leakproof UltraThin No-Show High Rise
Leakproof UltraThin No-Show High Rise
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Product Description
High Rise Silhouette
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.
Worry-Free Protection
Perfect for moderate period days, light bladder leaks, and sweat. Moisture-wicking liner keeps you dry and comfortable.
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.
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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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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: 996 Total 4 star reviews: 132 Total 3 star reviews: 83 Total 2 star reviews: 35 Total 1 star reviews: 77
What our customers are saying
Generated by AI from 100 most recent customer reviews
Last updated 3 days ago
Customers say these high-rise underwear are extremely comfortable and feel like wearing nothing at all. Many appreciate the smooth, silky fabric that provides confidence for light bladder leaks without the bulk of traditional liners. Users find them breathable, lightweight, and effective at staying in place without rolling down. The high waistband offers tummy support and works well under fitted clothing. However, sizing appears inconsistent, with many noting they run small and recommending ordering a size up. Some mention the waistband sits very high, which isn't preferred by all users. A few report issues with the absorbent area placement or coverage. Overall, customers praise their comfort and effectiveness for everyday wear.
86%would recommend these products
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1,323 reviews
- Rated 5 out of 5 stars4 minutes agochange of mind
I bought the first pair and loved the fabric and how they collected urine but they kept dropping below my stomach. When I saw they now have high rise and I ordered one size larger they now are perfect. They stay at my waist now and the blue color was very pretty. Size 2X.
Joan B.Verified BuyerReviewingLeakproof UltraThin No-Show High Rise - Rated 5 out of 5 stars22 hours agoExcellent protection, comfortable
These provide great protection that lasts through my work day. I don't have a heavy flow, so the moderate absorbency is perfect for me. I love how comfortable they are and that I can wear them on even a light day and feel practically normal.
I bought large because I don't like clothes that are too tight.
Amanda B.Verified BuyerReviewingLeakproof UltraThin No-Show High Rise - Rated 5 out of 5 starsYesterdayUltra thin pants
Very nice
Wendy A. W.Verified BuyerReviewingLeakproof UltraThin No-Show High Rise - Rated 5 out of 5 stars2 days ago5 Stars
Love the color!
JackieReviewingLeakproof UltraThin No-Show High Rise - Rated 5 out of 5 stars2 days agoGreat as ever
My fav style of all. Fits like a dream. Stays at my waist and never falls down. Yay!!!
Margot K.Verified BuyerReviewingLeakproof UltraThin No-Show High Rise - Rated 5 out of 5 stars5 days agoHigh rise
Tried others...always back to Knix.
Debra P.Verified BuyerReviewingLeakproof UltraThin No-Show High Rise - Rated 4 out of 5 stars5 days ago4 Stars
They work really well but they do roll down at the top.
JenniferReviewingLeakproof UltraThin No-Show High Rise - Rated 5 out of 5 stars5 days agoFreedom Again
I absolutely love how comfortable and smooth these are! I am at the age where I don’t always have leaks but still need to use a liner…just in case. As soon I put these on, it was freedom from liners!
Karen O.Verified BuyerReviewingLeakproof UltraThin No-Show High Rise - Rated 5 out of 5 stars5 days agoKnox review
It is wonderful to feel safe and wonderful and secure about my leakage problems when wearing my Knox . It gives me a comfort of less bulging when wearing my tights. Very saffied .
Louise B.Verified BuyerReviewingLeakproof UltraThin No-Show High Rise - Rated 5 out of 5 stars6 days agoSo comfy
It’s such a cute print and the perfect cut, I stayed dry all day.
Kimberly H.Verified BuyerReviewingLeakproof UltraThin No-Show High Rise - Rated 5 out of 5 stars6 days agoComfy
love the thinness - light weight. don't feel like I am wearing a diaper. super comfy
Juliet R. R.Verified BuyerReviewingLeakproof UltraThin No-Show High Rise - Rated 5 out of 5 stars1 week ago5 Stars
Great quality
RhondaReviewingLeakproof UltraThin No-Show High Rise
