FreeFlex™ Demi Bra
10% off Bra & Underwear Sets*







FreeFlex™ Demi Bra
10% off Bra & Underwear Sets*
Forget what you know about underwire bras. The FreeFlex™ is about to change everything.
Made with an innovative, carbonized flexible wire and wear-tested for more than 625 hours, our newest innovation provides unparalleled lift, separation and support. It’s everything you want from an underwire bra, without the pain of one.
• Lightly-molded demi cups provide medium coverage and provide a great shape that looks amazing under lower necklines and t-shirts
• A carbonized wire moves as your body moves for a comfort-first feeling
• To find your perfect fit, refer to our recommended Size Guide
🇺🇸 Free standard shipping over $100*.
Duty-free. (after discounts, before shipping + taxes)
All Knix bras 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.
Your questions, answered.
We offer innovative, wireless and wired bras that give you comfort, support, and lift (you know, the good stuff.) We’ve got styles for every occasion and every outfit: scoop bras, v-necks, pullovers, lightly-molded cups, demi cups, high impact sports bras, front closure bras, and more.
Glad you asked. Finding the right style for your shape and size is key to a comfy bra. Whether you’re looking for an everyday bra with extra side support or a high-impact sports bra, we can help. Take our style quiz to find the perfect bra for whatever occasion, fit, or style you’re looking for, be sure to check it out here.
We always suggest basing your Knix size right off your measurements in inches. You can find instructions on how to measure, plus our bra size calculator here.
Select styles come in sizes 28A-44H. We’re big believers in innovation, which means we’re always looking to expand our size range and further improve our products. Size questions or recommendations? Send us an email to info@knix.com.
- Brenda L.Verified BuyerCurrent Cup Size DCurrent Band Size 36Purchased Knix Size - Number Sizing 36DUsage - Bras Everyday20 hours agoCurrent Cup Size DCurrent Band Size 36Purchased Knix Size - Number Sizing 36DUsage - Bras EverydayRated 5 out of 5 starsEnjoying my purchase
So far the bra is comfortable while being supportive enough to handle everyday activities.
ComfortRated 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 LargeSupportRated 4.0 on a scale of 1 to 5Low HighWas this helpful? - Kaleigh D.Verified BuyerCurrent Cup Size ECurrent Band Size 32Purchased Knix Size - Number Sizing 32EUsage - Bras Everyday4 days agoCurrent Cup Size ECurrent Band Size 32Purchased Knix Size - Number Sizing 32EUsage - Bras EverydayRated 5 out of 5 starsFabulous bra!
I love this bra. After significant weight loss, my once very full bust is more rock-in-a-sock type.. this bra provides fantastic support, shape and lift.. my boobs look absolutely fantastic. Looks great under a variety of public-facing-appropriate fabrics, and minimizes the ‘headlight’ effect in a sufficient manner. I will continue to buy this bra.
ComfortRated 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 LargeSupportRated 5.0 on a scale of 1 to 5Low HighWas this helpful? - LanieVerified BuyerPurchased Knix Size - Number Sizing 36BUsage - Bras Everyday4 days agoPurchased Knix Size - Number Sizing 36BUsage - Bras EverydayRated 5 out of 5 starsMost comfortable bra I’ve ever owned!
Most comfortable bra I have ever worn! I bought both nude and black and have worn one every day for the last month and I have no complaints. This bra is supportive and moves with my body comfortably! Previously, I have not liked any Knix bra I have bought, but this one is a game changer! It looks great under a tight T-shirt too. Note: follow the size chart. I was wearing size 34D bras and the size chart said I was a 36B and to my surprise, the bras fit perfectly. Highly recommend purchasing one of these bra’s for daily wear!
ComfortRated 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 LargeSupportRated 4.0 on a scale of 1 to 5Low HighWas this helpful?