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SuperPlus Leakproof® No-Show High Rise
Best Seller
SuperPlus Leakproof® No-Show High Rise
$39.00
CAD
Buy 3+ Save 15%, Buy 5+ Save 20%
Absorbs 7-11 super tampons
Front-to-back liner
Bonded seams prevent leaks
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
SuperPlus Leakproof® No-Show High Rise
SuperPlus Leakproof® No-Show High Rise
SuperPlus Leakproof® No-Show High Rise
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Product Description
Comfort-First Fit
Ultimate Leakproof Protection
Day & Night Comfort
Machine Washable
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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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PATENTED LEAKPROOF TECHNOLOGY
Our longest, most absorbent liner—ever.
Our original Fresh Fix Technology® features a built-in absorbent liner that soaks up about 7–11 super tampons’ worth of liquid—so you stay fresh, comfortable, and in control.
Soft Top Layer
Middle Layer
Leakproof Layer
Bottom 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: 164 Total 4 star reviews: 21 Total 3 star reviews: 20 Total 2 star reviews: 17 Total 1 star reviews: 23
Reviews Summary
Generated by AI from 100 most recent customer reviews
Last updated 2 weeks ago
Customers say these high-rise underwear provide excellent protection for bladder leaks and heavy periods, with many praising their comfort and confidence-boosting qualities. Users appreciate the extended coverage from front to back and find them effective for overnight use. The fit receives mixed feedback - while many love the high-rise design and soft fabric, some report issues with slipping, rolling down, or loose leg openings. Several customers mention sizing challenges, noting they run small or have inconsistent fit compared to other styles. Common concerns include the material feeling slippery under clothing and some experiencing leakage despite the heavy-duty protection claims. Many find them bulkier than expected but appreciate the no-show design under most clothing.
76%would recommend this product
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245 reviews
- Rated 5 out of 5 stars4 minutes agoPleasantly surprised
The underwear was great and I was pleasantly supplemental by how well they fit and how truly leak free they were. I was not disappointed
Nathalia O.Verified BuyerReviewingSuperPlus Leakproof® No-Show High Rise - Rated 5 out of 5 stars11 hours agoPerfect gift!!!
I wear these daily and my drawer is full of them. I purchased a couple pairs for my sister who would never spend the money on herself - I hope she likes them as much as I do! If so, I always have a great gift for her!
Ashley E.Verified BuyerReviewingSuperPlus Leakproof® No-Show High Rise - Rated 5 out of 5 stars2 days agoSuper plus Leakproof
The best
Alona K.Verified BuyerReviewingSuperPlus Leakproof® No-Show High Rise - Rated 5 out of 5 stars5 days agoSuper Plus Leakptoof No-show High Rise
Are so comfortable and help with my incontinence.
Easy to care for, and get more comfortable with time.
Leah T.Verified BuyerReviewingSuperPlus Leakproof® No-Show High Rise - Rated 5 out of 5 stars6 days agoSuperPlus Leakproof
These panties live up to their name! In addition to being super absorbent, they are comfortable and stay in place without gaps or riding up
Elaine H.Verified BuyerReviewingSuperPlus Leakproof® No-Show High Rise - Rated 5 out of 5 stars6 days agoVery comfortable
These are lovely underwear. Easy to wear. Good coverage.
Dawn D.Verified BuyerReviewingSuperPlus Leakproof® No-Show High Rise - Rated 5 out of 5 stars1 week agoAs described
I love how this is high rise. I wear regularly size 18 from Canada/USA and XXL in those are my perfect size!
Emilie L.Verified BuyerReviewingSuperPlus Leakproof® No-Show High Rise - Rated 5 out of 5 stars1 week agovery comfortable and feel SAFE
I don't worry about leakage with these - they are GREAT!!!
carol F.Verified BuyerReviewingSuperPlus Leakproof® No-Show High Rise - Rated 5 out of 5 stars1 week agogreat leakproof underwear
Fit is good (I am 2X). Coverage is great. Fabric is sturdy.
J G.Verified BuyerReviewingSuperPlus Leakproof® No-Show High Rise - Rated 5 out of 5 stars1 week ago5 Stars
Très bon.
JohanneReviewingSuperPlus Leakproof® No-Show High Rise - Rated 5 out of 5 stars1 week ago5 Stars
Excellent!
JohanneReviewingSuperPlus Leakproof® No-Show High Rise - Rated 5 out of 5 stars1 week agoLife Changing
This product has absolutely changed the game when it comes to period products. I recently learned and educated myself about the presence of heavy metals in tampons and had to make a change. Knix period underwear came recommended to me by a couple of friends and decided to give them a try. I am SO happy I made the switch. Comfortable, extremely absorbent (I have a heavy flow and the ultra absorbent undies handle it so well), and I love that the high-waisted style hugs the tummy too. Overall incredibly happy with the purchase and I ordered 5 more pairs!
Mariah S.Verified BuyerReviewingSuperPlus Leakproof® No-Show High Rise
