Your Bag

Your cart is empty

But you're full of potential..
Rewards Members Earn 0 Points

Suggestions

Top Picks

The Quintessential Sleep Set

$150.00 CAD

Color: Dark Cherry Limited Edition

Super Leakproof® Dream Short

$48.00 CAD

Color: Tapestry Limited Edition

Shimmer Stretch Bralette

$58.00 CAD
10% off Bra & Underwear Sets*

Color: Black

SuperPlus Leakproof® No-Show Bikini

$36.00 CAD
Mix & Match: 3+ for $33 each

Color: Dark Cherry Limited Edition

Home / Bras / FreeFlex™ Demi Bra
Best Seller

FreeFlex™ Demi Bra

$78.00 CAD

10% off Bra & Underwear Sets*
Checkmark

Our first underwire bra

Checkmark

Comfortable, flexible wire

Checkmark

Lifts and separates

Checkmark

Lightly lined molded cups

Sofia is wearing a 32D | Warm Sand

Sofia is wearing a 32D

| Warm Sand
Sofia is wearing a 32D | Warm Sand

Sofia is wearing a 32D

| General
| General
| General
| General
Sofia is wearing a 32D | Warm Sand

Sofia is wearing a 32D

Sofia is wearing a 32D

Color: Warm Sand

Size:

True to Size

•

Size:

Knix Size

Size and Fit Guide

Free Shipping on orders $100+

Shipping

Shipping
Processing Timelines

Please allow 1-2 business days for our warehouse team to pack and ship your order. During peak periods such as sales, holidays and product launches, please allow up to 4 business days for us to process your order.

Delivery Time

For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines vary depending on location and do not include processing times.

Shipping Charges

Orders over $100* CAD = Free Shipping (2-6 business days)
Orders under $100* CAD = $12 CAD Shipping (1-3 business days)
Orders delivering to NWT, Nunavut and Yukon are subject to $20 delivery fee.
*After discounts, before shipping and taxes.
Easy Returns within 30 Days

Returns

Returns
Free Returns

Knix covers the return shipping fees for exchanges and refunds initiated through our Return & Exchange Portal. Exchange orders initiated through our Return & Exchange portal are also eligible for free shipping within the USA and Canada. Please note, the shipping fees on your original order are non-refundable.

Return Policy

Return policy varies by product, please check if your item is refund or exchange eligible by viewing our full policy here.

Sale & Last Call

Items discounted below 30% are eligible for size exchange or store credit. Items discounted 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.
Rewards Members Earn 78 Points

You May Also Like

Leakproof UltraThin No-Show High Rise

$32.00 CAD

Revolution V-Neck Bra

$68.00 CAD

WingWoman Contour Bra

$75.00 CAD

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, moulded 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.

Zoom

Sofia is wearing a 32D | Warm Sand
| Warm Sand
Sofia is wearing a 32D | Warm Sand
| General
| General
| General
| General
Sofia is wearing a 32D | Warm Sand

How to Choose?

Essential

Drop
Drop
Drop
Drop
Drop
  • • Everyday Wear
  • • No leakproof protection
  • tsp
    0 tsp

Heavy

Drop
Drop
Drop
Drop
Drop
  • • heavy period days
  • • overnight protection
  • • light bladder leaks
  • tsp
    about 8-14 tsp
  • pad
    about 1.5-3 regular pads
  • tampon
    about 4-7 super tampons
  • cup
    about 1.5-3 menstrual cups

Light

Drop
Drop
Drop
Drop
Drop
  • • light period days
  • • sweat
  • • discharge
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

Drop
Drop
Drop
Drop
Drop
  • • moderate period days
  • • light bladder leaks
  • • sweat
  • tsp
    about 4-8 tsp
  • pad
    about 1-1.5 regular pads
  • tampon
    about 2-4 super tampons
  • cup
    about 0.5-3 menstrual cups

Ultra

Drop
Drop
Drop
Drop
Drop
  • • extra heavy period days
  • • overnight protection
  • • light bladder leaks
  • tsp
    about 15-20 tsp
  • pad
    about 1.5-2.5 super pads
  • tampon
    about 7-11 super tampons
  • cup
    about 2-3 menstrual cups
FREEFLEX™ TECHNOLOGY

Meet our first wired bra reimagined for optimal comfort and support

Wear tested for more than 625 hours to provide unparalleled lift, separation and support.

Molded Cups

Carbonized Flexible Wire

Innovative carbonized wire flexes and moves with you, delivering the classic structure of an underwire without pinching or digging.

Holiday Top Picks

Shop All Arrow Right

Leakproof UltraThin No-Show Bikini Shimmer 3-Pack

$75.00 CAD

Color: Tapestry/Burnished Gold/Dark Cherry Limited Edition

WingWoman Contour Bra

$75.00 CAD
10% off Bra & Underwear Sets*

Color: Tapestry Limited Edition

The Quintessential Sleep Set

$150.00 CAD

Color: Ivory Limited Edition

Light Leakproof UltraThin No-Show Thong

$27.00 CAD
Mix & Match: 3+ for $20 each

Color: Warm Sand

Shimmer Stretch Bralette

$58.00 CAD
10% off Bra & Underwear Sets*

Color: Black

Overnight Favorites Gift Set

From 
$83.00 CAD

SculptRib™ Cotton Long Sleeve Top

$62.00 CAD

Color: Dark Cherry Limited Edition

Modal Rib Henley Sleep Set

$75.00 CAD

Color: Black

3.9
Rated 3.9 out of 5 stars
Based on 390 reviews
Total 5 star reviews: 205 Total 4 star reviews: 62 Total 3 star reviews: 43 Total 2 star reviews: 43 Total 1 star reviews: 37
71%would recommend these products
ComfortRated 4.0 on a scale of 1 to 5
FitRated -0.1 on a scale of minus 2 to 2
SupportRated 4.1 on a scale of 1 to 5
Write a Review (Opens in a new window)
390 reviews
  • Rated 5 out of 5 stars
    6 hours ago
    5 Stars

    Fits like a glove with good support.

    Doris
    Was this helpful?
  • Rated 5 out of 5 stars
    3 days ago
    5 Stars

    great fit and holds the shape

    Jean
    Was this helpful?
  • Rated 5 out of 5 stars
    5 days ago
    Great bra

    I've been searching for a new bra to replace a favorite that is no longer being made by another company. This one fits me perfectly. It's comfortable and washes well. I'll be back for another one of these.

    Vicky C.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    1 week ago
    Size up

    I ordered the size I required by my measurements and I find it tight, digs in and the cup smaller than the WingWoman Bra

    Bobbi J. j.
    Verified Buyer
    Was this helpful?
  • Rated 4 out of 5 stars
    1 week ago
    Better than expected

    I have always hated bras with wires. This is the first one that actually lifts as needed (38C) and feels comfortable the entire day. While not perfect, it that there’s one bra out there that is, it’s very close!

    If you want to feel like a woman, feel pretty and also have comfort and functionality, then this is worth the purchase.

    Sandra M.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    1 week ago
    so noisy!!

    Can't wear it so can't review the fit. Squeaks constantly.

    Julie M. D.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    Gives great shape

    All the comfort of Knix curvy contours

    Cindi
    Verified Buyer
    Was this helpful?
  • Rated 2 out of 5 stars
    2 weeks ago
    Didn’t work for me

    Unfortunately this did not work for me. I LOVE Knix underwear but have yet to find a bra that is comfortable for me. I found that this bra is very squeaky like other reviewers described. It is quite loud while wearing it. Also it is very stiff and very uncomfortable. It does offer great lift and is supportive for larger breasts. Sadly after wearing it to work, I couldn’t wait to get home and take it off.

    Stacey C.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    Comfort and Style

    These bras are so comfortable and I love the leopard print!

    Deborah T.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    Bra

    Very comfortable bra, I love it

    Bonnie B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    Repeat purchase

    So comfortable with good support.

    Faye T.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    3 weeks ago
    Comfortable, but can't stand the NOISE!

    I have never had a noisy bra before. This bra squeaks/creaks whenever you move. I think it may be the flex wire. My partner would hear it while I was driving it's so loud.

    On top of that the straps started curling and Customer Service said it was due to excess tension and that I likely had the wrong size. I was fitted in the knix store for a 42D. They don't seem to increase the strap length when you have a wider band size, which is silly. Also the bra doesn't hug the cleavage and sticks out; which is noticeable when wearing a t-shirt.

    I am SUPER disappointed. I have tried all of the knix bras and none of them worked. I thought I had found the perfect one. It was very comfortable, but I can't ignore the critical defects.

    KD
    Verified Buyer
    Was this helpful?