Shaper High Rise Leakproof Briefs






Ready to go commando in your shapewear? Now you can.
Updated with our UltraThin liner, these shaper briefs absorb about 2.5 super tampons' worth without any of the bulk.
The all-in-one brief is designed with targeted support zones for smoothing and shaping of the lower tummy, back and waist. 3D flocking creates a gentle hold.
No-sew technology gives a seamless look without visible panty lines. Perfect for any outfit.
• Sits above the natural waistline
• Full butt, hip and tummy coverage
• Seamless bonded edges prevent dig-in and panty lines
• Buttery-soft fabric gives a smooth look and feel
🇨🇦 Free standard shipping over $100.
(after discounts, before shipping + taxes) All items ship from within Canada.
All Knix shapewear are eligible for return or exchange within 30 days of delivery. We want to make sure you can give your new Knix products time to mold to your shape and get comfortable. For sale items with a 20% or more discount you may exchange for another item or store credit.
Introducing our patented PerfectCut™ technology
The perfect outfit needs the PerfectCut™. Customize your shapewear to fit your outfit, and unlock your wardrobe’s full potential.


Making a deeper plunge on the back?
Cut just above the velvet line.


Shortening the leg?
Customize one or both legs by cutting below the velvet line.


Have fabric scissors?
Use them. If not, any sharp scissors will do.
Customizable Shapewear FAQs
Simply machine wash on cold with like colors, then lay flat to dry. Skip the bleach, dry cleaning and ironing.
These styles are: the Customizable Shaper High Rise Leakproof Shorts and the Shaper High Rise Leakproof Briefs
Only Knix shapewear with the patented PerfectCut™ technology can be cut and customized.
✂️ Want help making the PerfectCut™? Learn how easy it is here.
- Eileen K.Verified BuyerHeight <5’5”Pant Size 22+Pant Size Purchased XXLUsage SweatUsual Pant Size 22+13 minutes agoHeight <5’5”Pant Size 22+Pant Size Purchased XXLUsage SweatUsual Pant Size 22+Rated 5 out of 5 starsSo in love.
This were the best shape wear, I have ever worn. They kept their shape the entire day. Most will stretch out, after a full day. I was able to breath and move all day, yet everything stayed put.
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentEffectivenessRated 5.0 on a scale of 1 to 5Poor ExcellentFitRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeEase of UseRated 5.0 on a scale of 1 to 5Poor ExcellentSupportRated 5.0 on a scale of 1 to 5Low HighWas this helpful? - DeeVerified Reviewer1 month agoRated 5 out of 5 starsPerfect for my wedding
Unfortunately I’m due to get my period on my wedding day and was so worried until I got these! I am usually a medium in underwear so ordered both a medium and a large due to conflicting reviews about size. Turns out the medium is prefect for me. Prefer them to my HoneyLove ones actually in terms of comfort.
So happy I don’t need to worry about period or leaking through a tampon on my big day now. Thanks Knix!
ComfortRated 5.0 on a scale of 1 to 5Poor ExcellentEffectivenessRated 5.0 on a scale of 1 to 5Poor ExcellentFitRated 0.0 on a scale of minus 2 to 2Runs Small True to Size Runs LargeEase of UseRated 5.0 on a scale of 1 to 5Poor ExcellentSupportRated 5.0 on a scale of 1 to 5Low HighWas this helpful? - Brenda D.Verified Buyer5 months agoRated 5 out of 5 starsLeak proof underwear
It is easy to wire doesn’t feel like it’s for a someone who has leaking bladder.
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