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Limited Time Offer

FreeFlex™ Demi Bra

$78.00 CAD

Buy a Bra, Get Free Ultrathin Undies | Code: FREELEAKPROOF
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Our first underwire bra

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Comfortable, flexible wire

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Lifts and separates

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Lightly lined molded cups

| Warm Sand
 | 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

Color: Warm Sand

Size:

True to Size

Size:

Knix Size

Size and Fit Guide

Free Express Shipping on orders $125+

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

Sale & Last Call

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

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.

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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

| 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

How it Compares

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.

3.9
Rated 3.9 out of 5 stars
Based on 438 reviews
Total 5 star reviews: 224 Total 4 star reviews: 69 Total 3 star reviews: 51 Total 2 star reviews: 49 Total 1 star reviews: 45
69%would recommend these products
ComfortRated 3.9 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
438 reviews
  • Rated 2 out of 5 stars
    3 minutes ago
    Used to be amazing...Sadly not anymore for myself

    As per my review title...I used to love this style bra when they first came out. Mind you the cups eventually will form creases in the cups after several washings that can not be removed by reshaping. All 3 of my previous bras have done this. Sadly I bought 2 more just before Christmas and i'm not sure if they changed the underwire or the material but both make squeeking sounds when I move...while it's on! I couldn't believe it because my previous ones never made these sounds. I noticed others have made this kind of comment previously but part of me couldn't believe it until I experienced it. I thought maybe after several washings and wearing them around the house daily for a few weeks would possibly make the squeeking sound dissappear but sadly they still squeek. I really hope I can return them or exchange them for another style because I have been a returning customer for many years and have almost all their styles which were so much more comfortable and still have after years of wearing and washing and they're still very comfortable and don't crease in the cups like these. Sadly I won't be buying this style anymore after these experiences. I still feel they make the most comfortable bras I have ever worn..Just excluding this demi cup bra. Mind you the lift and separation are on point and do exactly that. If you don't mind a Squeeking sound that others can hear everytime you move( my boyfriend and son both noticed and started laughing when they figured out the sound was…

    Jacenta F.
    Verified Buyer
  • Rated 1 out of 5 stars
    5 hours ago
    Failed experiment

    Unfortunately, despite measuring, it was not a good fit

    Heather N.
    Verified Buyer
  • Rated 5 out of 5 stars
    13 hours ago
    lovely bra

    Great fitting bra and so happy with fit and comfort

    I really love wearing and very comfortable to all day wear

    judy h. g.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days ago
    LOVE!

    This is the most comfortable wired bra I've owned. I had high expectations for this Knix product and they didn't disappoint! I will definitely be buying more of these.

    Nicole H.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days ago
    5 Stars

    Love the fit and feel

    i tried to order the boxers but it sold out

    Carol
  • Rated 3 out of 5 stars
    5 days ago
    3 Stars

    This bra is comfy but squeaks! The smallest movement make it so squeaky and i cant do my job without laughing.

    Natasha
  • Rated 5 out of 5 stars
    1 week ago
    5 Stars

    Took me awhile to figure out the proper fit and very happy with the end result

    Hanna
  • Rated 2 out of 5 stars
    1 week ago
    Imperfect Fit

    I ordered the right size; but there are gaps in the sides of the fabric and the bra makes sounds where the underwire is located. I'm probably going to donate the bra. I ordered a size down and there was no improvement in the fit or sounds the underwire makes.

    DENISE A.
    Verified Buyer
  • Rated 4 out of 5 stars
    1 week ago
    4 Stars

    Comfortable light underwore bra with great support

    Jody
  • Rated 3 out of 5 stars
    1 week ago
    Not the Greatest

    I'd say this bra is adequate. It squeaks, like many others have said, and I feel its presence too much on my sides. But it has good shape. Hoping the noise goes away with washing a few times and wearing it in?

    I originally bought my usual size, but it was far too small in the band, so I went by their sizing and it worked.

    Larissa
    Verified Buyer
  • Rated 4 out of 5 stars
    1 week ago
    4 Stars

    Fits nicely but one wire is shaped a little funny and occasionally digs in

    Elizabeth
  • Rated 5 out of 5 stars
    2 weeks ago
    Great

    Beige an pd blacj

    Connie C.
    Verified Buyer