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FreeFlex™ Demi Bra
Ends Sunday ⏰
FreeFlex™ Demi Bra
$49.00
CAD
$78.00
37% off
Our first underwire bra
Comfortable, flexible wire
Lifts and separates
Lightly lined molded cups
Size and Fit Guide
Use Our Calculator to Find Your Traditional Bra Size
Step 12 of 2
Your Results
Measure Your Under Bust
Measure Your Full Bust
Wearing an unpadded bra, wrap a measuring tape around the top of your ribcage. You’re looking for a snug fit - so we recommend tightening on the exhale and noting the smallest measurement to the decimal.
Wrap the measuring tape around the fullest part of your chest, making sure the measuring tape is paralell to the floor. Relax your shoulders and measure where it falls.
At Knix, your size is
Still have questions? Ask our virtual assistant about finding the perfect fit.
Still have questions? Book a virutal fitting with our amazing customer experience team!
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Product Description
The Underwire Bra Reinvented
Wear tested for over 625 hours, providing unparalleled lift, separation, and support.
All Day Comfort
It's everything you want from an underwire bra without the downfalls of one.
Feels Made For You
Lightly lined, molded demi cups lift and separate for a great shape that looks amazing under lower necklines and T-shirts. Adjustable straps create the perfect fit.
Smooth Coverage
The ultimate t-shirt bra that appears invisible under clothes.
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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
How it Compares
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Molded cups for lift & support
Mesh detailing at bust to prevent spillage
Back mesh panels for a smooth silhouette
WingWoman Contour Bra
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Extra side coverage prevents spillage
Comfortable, wireless support
Revolution V-Neck Bra
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Buttery-soft BeyondSmooth™️ fabric
Four-way stretch for total comfort
Uplift Push Up Bra
Embedded raised foam panel for natural lift
Molded cups define your shape
Comfortable, wireless support
FreeFlex™ Demi Bra
Comfortable, flexible underwire
Lightly lined cups
Lifts and separates
Revolution Shadow Mesh Bra
Wireless, removable cups
Buttery-soft BeyondSmooth™️ fabric
Mesh detail at bust prevents spillage
Revolution Scoop Bra
Wireless, removable cups
Buttery-soft BeyondSmooth™️ fabric
Versatile scoop neckline
FREEFLEX™ TECHNOLOGY
Carbonized Flexible Wire
Rigorous Comfort Testing Wear
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Ends Sunday ⏰
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37% off
Color: White
+4
Recently Viewed
Total 5 star reviews: 244 Total 4 star reviews: 75 Total 3 star reviews: 57 Total 2 star reviews: 52 Total 1 star reviews: 53
68%would recommend these products
481 reviews
- Rated 5 out of 5 stars1 week agoMy favourite bra
My favourite bra! Its so soft and the wire is the perfect support. The quality is amazing. I love knix bras but this one takes the crown!!
Jessica C.Verified BuyerReviewingFreeFlex™ Demi Bra - Rated 5 out of 5 stars2 weeks agoGreat bra
I wasn’t sure about this bra because I usually enjoy something a little cuter looking. But I have to say I reach for this bra anytime I need something smoothing with great support. Will definitely buy another!
Henrietta B.Verified BuyerReviewingFreeFlex™ Demi Bra - Rated 5 out of 5 stars2 weeks agoFree flex Demi Bra
Very comfortable and great support. Would definitely buy again
Melissa E.Verified BuyerReviewingFreeFlex Demi Bra - Last Call - Rated 5 out of 5 stars2 weeks agoMy new fav bra!
Literally bought 3 of the Demi Flex bras in and considering buying a fourth in a new colour! Shipping is in a decent time frame!
Lydia J.Verified BuyerReviewingFreeFlex™ Demi Bra - Rated 5 out of 5 stars3 weeks agoGood
Unfortunately, I took small size, next time will be careful, but it is really good
Viktoriia Z.Verified BuyerReviewingFreeFlex™ Demi Bra - Rated 5 out of 5 stars3 weeks agoFinally!!
An underwire that’s comfortable! And supports. Loving this bra.
Amanda K.Verified BuyerReviewingFreeFlex™ Demi Bra - Rated 5 out of 5 stars3 weeks ago5 Stars
Very comfortable
normaReviewingFreeFlex Demi Bra - Last Call - Rated 5 out of 5 stars1 month agoBetter than I’d imagined!
Comfortable. Don’t even know I’ve got a bra on.
Jennifer C.Verified BuyerReviewingFreeFlex™ Demi Bra - Rated 5 out of 5 stars1 month ago5 Stars
Such a great bra!! Im a rare size and they have my size?!! The 2 I bought are beautiful and so soft and very comfortable . Thank you knix!
TanyaReviewingFreeFlex™ Demi Bra - Rated 5 out of 5 stars1 month ago5 Stars
Such a great bra!! Im a rare size and they have my size?!! The 2 I bought are beautiful and so soft and very comfortable . Thank you knix!
TanyaReviewingFreeFlex™ Demi Bra - Rated 5 out of 5 stars1 month agoIke do review
I love ALL my KNIX underwear, I have briefs and bras in every color, briefs in every style as well!!!
Linda J.Verified BuyerReviewingFreeFlex™ Demi Bra - Rated 5 out of 5 stars2 months agoBeautiful Bra
I am really enjoying wearing my Demi bra, it is very comfortable and I love the Black with Speckles.I even purchased two more bras.
Carolyn H.Verified BuyerReviewingFreeFlex™ Demi Bra
