Knix Review

About Knix

Knixwear Underwear Review

Knix is a Canadian company that strives to make the challenging aspects of everyday life more graceful and stylish. They provide bras, underwear, and other sports attire for women of all sizes. 

Whether you’re looking for a sports bra, an everyday bra, or a maternity bra, Knix has you covered. They offer consultations on getting that perfect fit via email or in-person by appointment.

Their selection of bras and underwear is advertised in a purposeful way, making it easier to find the perfect bra for almost any outfit. 

Joanna Griffiths began her journey into Knix by inventing underwear to prevent leakage for women. She continues to lead the brand from Toronto, Ontario.

Knix bras and underwear are designed for women who don’t want to worry about any leaks from working out, breastfeeding, bladder issues, etc., and don’t want to have any unnecessary discomfort in their lives.

My Knix review will provide an in-depth look into the company and its products to ensure you make the right purchase decision.

Why You Should Trust Us

Our mission is to help you make better, more informed purchase decisions.

Our team spends hours researching, consulting with medical experts, gathering insight from expert professionals, reviewing customer feedback, and analyzing products to provide you with the information you need.

Core Values 

Knixwear Underwear Review

Knix focuses on the following core values:

  1. Finding the perfect bra and underwear size for each customer. Knix provides detailed instructions on how to measure yourself for a Knix bra and offers fitting appointments. 
  2. Making Knix bras and underwear as functional and as comfortable as possible. For women looking for a sports bra, a bra for breastfeeding, or a bra for comfort—Knix is determined to give their customers comfort and satisfaction.
  3. Ensuring their customers are completely satisfied. They offer exchanges and/or store credit within 30 days. 
  4. Empowering women of all ages and sizes. Knix bras offers up to a G cup, which is a rare and difficult-to-find size.

Knix bras and underwear showcase the brand’s determination to raise physical confidence among women.

Pros & Cons

Up ahead in my Knix review, I’ll share some pros and cons of shopping with the brand:


  1. Inclusivity: Knix has positioned itself as an inclusive option for undergarments, offering a size range from 28A to 48H and catering to different life stages such as maternity and postpartum. The brand also provides a tonal range of six “nude” shades to choose from, highlighting its commitment to inclusivity and diversity.
  2. Ethical Sourcing: Knix is committed to ethical sourcing and has chosen factories in China and South Korea that align with its social and environmental values. The brand strives to ensure that its manufacturing processes are socially and environmentally responsible.
  3. Innovative Designs: Knix has gained recognition for its innovative designs in intimate apparel and activewear. The brand utilizes patented bonding technology to create seamless and chafe-free designs, as well as fabrics with built-in support structures. This approach allows for comfortable and functional products that provide support without compromising on style.
  4. Empowering Women: Knix is dedicated to empowering women by providing products that enhance their everyday lives. The brand’s commitment to comfort, functionality, and style aims to inspire women to live unapologetically free. Knix has also been praised for featuring real women of all ages, sizes, and backgrounds in their campaigns, showcasing diversity, and promoting body positivity.


  1. Fitting Challenges: Some customers have experienced challenges with the fit of Knix apparel. Despite the availability of a comprehensive sizing chart and customer support for measurements, there have been complaints about the garments being too snug or not fitting properly at the time of purchase.


Knixwear Underwear Review

Here are some features of Knix apparel:

  1. Comfort: Knix apparel is designed with the goal of making the wearer feel more comfortable in their own skin. The brand prioritizes comfort in their clothing, including tanks, bodysuits, loungewear, sleepwear, sports bras, leggings, and more.
  2. Innovative designs: Knix is known for its innovative designs in the world of intimate apparel and activewear. They aim to provide functional and empowering designs for women, using high-quality materials and focusing on comfort and confidence.
  3. Versatility: Knix offers a range of apparel options, including loungewear, sleepwear, sports bras, leggings, bottoms, socks, and accessories. Their collection is designed to meet various needs and occasions, allowing customers to feel comfortable and confident in different settings.
  4. Inclusivity: Knix has been recognized as a brand that embraces inclusivity. They were the first brand to use real women of all ages, sizes, and backgrounds on their website. This commitment to representation showcases their dedication to catering to a diverse range of customers.
  5. Quality: Knix apparel is known for its quality. For example, the Knix Catalyst Sports Bra has been tested against over 800 bras and proven to be of superior quality, offering support and comfort to the wearer.


Knixwear Underwear Review

Here are some general insights on the materials Knix uses to create their products:

  1. Innovative and high-quality materials: Knix is known for its commitment to using high-quality materials in its intimate apparel and activewear. While specific materials are not mentioned in the search results, the brand emphasizes comfort, functionality, and empowerment in its designs, suggesting that they carefully select materials that meet these criteria.
  2. Leakproof technology: Knix offers period underwear with patented leakproof technology. The underwear is described as “super-absorbent, moisture-wicking, odor-killing, and quick-drying” on their website, but the specific materials used are not mentioned.
  3. 4-way stretch fabric: Some Knix products, such as the Evolution Bra, are mentioned to have 4-way stretch fabric, allowing them to conform to the shape of the body and provide comfort.

6 Best-Selling Knix Apparel

Knix Sports Bra Review

This Knix Catalyst Sports Bra comes in violet, black, steel grey, and a limited edition pattern.

It may seem expensive at $98, but the quality proves itself: the Catalyst outperformed over 800 bras it was tested against.

Easy to wear, this Knix piece molds to your body, supporting your breasts and keeping things comfy. Knix bra reviews gave this sports bra a 5-star average, making it a stellar workout choice. 

Knix Evolution Bra Review

The Evolution Bra is a reversible wireless bra that comes in black, beige, grey, and a limited edition color for $68. The bra’s lack of seams and 4-way stretch fabric allows it to fit the shape of your body.

This piece provides all-around comfort and support without the need for padding. The Evolution Bra also has an average review of 5 stars, but with limited reviews to consult compared to the Catalyst.

Knix Leakproof Nursing Bra Review

Knix’s Nursing Bra comes in just 2 colors, black and beige. Its leakproof padding makes breastfeeding less of a hassle and the fabric is made extra stretchy for the intense body changes mothers must go through1.

It has five adjustable latches for just that purpose. For a decent price of $68 and with an average of 5-star Knix bra reviews, this leakproof bra is up for the challenge.

Thigh Saver Short

The Thigh Saver Shorts are exactly as they sound—say goodbye to thigh chafing. These Knix underwear shorts come in black and beige for a fair price of $39.

This underwear is seamless and made with a comfortable stretchy fabric. The Thigh Saver Short may not come in a wide variety of colors and designs, but they save your thighs for a reasonable price.

The only negative aspect would be that since the underwear covers the thighs, they may only be wearable with dresses and high-waisted pants. When it comes to this product, they will function as a buffer for your thighs so long as you wear them with enough coverage.

With multiple 5/5 star Knix reviews, the Thigh Saver Short is a popular product in its category.

Essential Thong

Knix’s Essential Thong is one of the most diverse products found on their website.

Stylish and functional, the Essential Thong has it all. It is quick to dry after a sweaty workout, seamless, and extremely soft. No panty lines, no sweat marks, no problem.

The stretchy softness of this Knix underwear line is simply essential for any athletic ensemble. For a fair price of $23, this is by far one of the brand’s most reasonable underwear offers.

Leakproof Boyshort

A Knix review found that the Leakproof Boyshort is a very popular product in its category. With even more designs and colors than the Essential Thong, this Knix underwear is both stylish and helps prevent leakage.

This piece is seamless and can contain up to 3 tbsp of liquid without leaking. The built-in liner is very thin, making it almost indistinguishable from non-leak-proof Knix underwear. With over a thousand 5-star reviews, Knix’s Leakproof Boyshort is a bestseller.

Knix’s Leakproof collection is also available in thong, cheeky, bikini, high rise, high rise thong, and short styles.

For a generous price of $27, this extremely absorbent Leakproof Boyshort is sure to help any woman with bladder issues and periods carry on with their day, without having to worry about the state of their underwear.

Who Is Knix For?

Knix apparel is designed for women and is known for its inclusive approach, catering to women of all ages, sizes, and backgrounds.

The brand has made significant efforts to represent real women in their marketing campaigns, embracing diversity and promoting body positivity.

They were the first brand to use real women of all ages, sizes, and backgrounds on their website. Knix has also launched specific product lines targeting different demographics, such as their period underwear brand for teens and tweens called Kt by Knix.

In addition, they released a lingerie campaign exclusively featuring women from ages 50 to 81.

Knix Reviews: What Do Customers Think?

Knixwear Underwear Review

No Knix review would be complete without hearing from their customers, which is why I devoted this section to exactly that. Let’s take a magnifying glass to what real people had to say about the brand and their products.

The Knix website has a very favorable 4.4/5 stars based on nearly 20k reviews!

The Revolution Bra alone holds a rating of 4.5/5 stars based on over 1.6k ratings. By and large, most customer testimonials looked a little bit like this one: The most amazingly comfortable bra I have ever worn that I forget I am wearing it!

On external rating platforms, Knix still performs relatively well. At, they hold a score of 3.1/5 stars based on over 800 reviews.

Turning doubters into happy customers, here’s one testimonial that details that whole experience:

“I absolutely love this bra! I hate to admit this but I originally bought a Knix bra to prove there was no such thing as a comfortable bra; I was wrong. I didn’t realize just how comfortable it was until I threw it in the wash and put on one of my traditional underwire bras. This thing is miserable to wear after having worn a Knix bra and I can’t wait to take it off and get my Knix bra back on.

Lastly, Knix has a very respectable 4.6/5 star-rating on Trust Pilot based on 254 reviews. Here, I also found much praise for the brand, including this one:

“Amazing company! Great products, accurate size charts, very quick responses to your queries, the best customer service I’ve experienced. Love everything about this company!

Despite that, I did find a few less-than-stellar testimonials about customer service. However, these were very much the minority when it comes to the overall public opinion on Knix. All in all, folks are over the moon when it comes to this brand and their products.

Where To Buy Knix

Knixwear Underwear Review

Retail Stores

Knix has two retail locations in Canada: 

  •  630 Queen St West, Toronto, ON. 
  • 2076 W 4th Ave, Vancouver, BC.

If you want to have a Knix bra-fitting appointment made, you can visit the Knix Showroom in either location to be seen by a Knixpert. Appointments can also be made online beforehand.

Is Knix Online?

Knix has its highest amount of selection and customer service online. All products are available on their main website and on Amazon.

Knix Promotions & Discounts

Knixwear Underwear Review

For this Knix review, I hunted for the best deals available and found the following:

  • Receive 10% off your first order online
  • Give $15 get $15 off your order if you refer a new customer
  • Papaya Sculpt Legging on sale for only $50 instead of $80
  • Bundle and save on select limited-edition undies


You shouldn’t limit yourself to one brand unless it really speaks to you. Here are a few more options to consider if you’re looking to shop around:

  1. Thinx: Thinx is a popular brand of period underwear that provides fresh and fun designs, comfort, and a wide range of colors and sizes. While it is an alternative to Thinx underwear, there are other options available as well.
  2. BamBody Absorbent Panty: BamBody Absorbent Panty is considered one of the best alternatives to Knix underwear. It is designed for women on their periods and offers similar features to Knix period underwear, such as high-quality materials and absorbency.
  3. Neione: Neione is another alternative to Knix period underwear. It provides affordable options with high-quality materials and a different design. Neione is known for its revolutionary technology in menstrual underwear.


Knix Shipping Policy

Knix ships primarily to Canada and the United States but can ship to many other countries. All orders are shipped from Canada, so Canadian shipping is undoubtedly the most efficient. 

I’ll outline some shipping details below in this Knix review:


  • Via Canada Post
  • Free shipping on orders over $100 before taxes, shipping, or any discounts
  • Flat rate of $10 shipping to Central Canada
  • Flat rate of $20 shipping to the North West Territories, Nunavut, and Yukon
  • Arrival time is between 3-5 business days in the GTA, between 3-10 business days in urban areas, and between 6-15 business days to other locations within Canada

United States

  • Via DHL Shipping
  • Free shipping on orders over $75 USD before taxes, shipping, or any discounts
  • Flat rate of $7
  • Average arrival time is between 3-10 business days
  • Orders over $700 may be subject to customs fees


  • Via DHL Shipping
  • Free shipping on orders over $150 before taxes, shipping, or any discounts
  • Flat rate of $25
  • Average arrival time is between 10-25 business days
  • Custom fees may apply

Knix Return Policy

Knix returns cannot be processed when underwear has been worn, simply for hygienic reasons. But a Knix bra can be returned or exchanged within 30 days, even after washing and wearing it. 

Items that are on sale with a discount of 20% or more can be exchanged and are eligible for store credit, but not a refund. Items with a discount of less than 20% have individual return policies. 

How to contact Knix

I hope you enjoyed this Knix review! For more information, inquiries, and services, the customer service team can be reached via the following channels:

Exploring your options for period care? Check out these other popular brands:

Ruby Love Period Underwear Review

Period Aisle Review


August Pads Review

Ask the community or leave a comment

Ask a Question
Asked by Kate Michalska (4 years ago) Reply

Actually, I found this to be the most uncomfortable bra I had EVER worn. It felt like wearing a plastic bag. Secondly, for a company that advertises that it’s Canadian, it is manufactured in China.

Asked by Patricia L Doyle (4 years ago) Reply

Just bought two of the thigh saver underwear, the shorter and longer lengths. Both are uncomfortable to wear as the waistbands roll down and gradually the whole things slips down. It requires constant yanking up. Money wasted as I can’t wear these items.

Asked by Cindy (3 years ago) Reply

I bought 3 pairs xl and 3 pairs 2x high rise underwear. The website says they fit snug at first. I usually wear Hanes cotton xl, so I wasn’t sure if the xl would be large enough. The xl are soooo big, the leg holes hang off my butt, and I can pull the underwear up under my bra. I am 5’8”. I washed them when they arrived and I am wearing the first pair for 7 hours??? The gusset does not cover my rear end. I have to pull them up at the back and push the gusset in between my cheeks so I don’t leak when I lay on my back??? You should offer a gusset 11 or 12 inches. A long Kotex is 10 inches. How is this product guaranteed leak proof?

Asked by Susan Carlesso (3 years ago) Reply

My leakproof underwear are falling apart! The crotch seam came opened up at first, and now the whole edging has come away from the crotch panel! These are not dried in the dryer, but hung up to dry! Is this common? XL is what I wear, and it is comfortable and looks very nice under my slacks, but are these defective?

Asked by Karla J Sheeley (3 years ago) Reply

Not attractive, and hideously uncomfortable underwear. What a waste of my money given I ordered 8 pairs, only opened and broke the seal on one of the packages and yet they will not accept return on others. Why do they waste the packaging and resources for packaging to seal them if they still will not accept a package that has not been tampered with. Bad for the environment with their clown size carbon footprint. As far as answers for their policy, they have none.

Answered by Marly Kendrick (3 years ago) Reply

Yes! I wanted to exchange my unopened packs of underwear for a different cut. I used their sizing guide and measured myself and trusted their tools and the underwear still didn’t fit so now when I want to exchange them for a different cut or size….No dice! $128 down the drain.

Answered by lindsay (3 years ago) Reply

the underwear stretches out A LOT. they will fit REALLY SMALL when you get them. to break them in wear them to bed for a few nights. once they fit nicely DON”T WEAR THEM TO BED as they will keep stretching out then be too big. I don’t know why they don’t explain how their material works better on their website…

Answered by Terri S Fisher (3 years ago) Reply

HORRIBLE company!!!!! I just had to throw away $96 in underwear because they were too small and wouldn’t let me exchange for larger size!

Asked by Heather (3 years ago) Reply

I was very excited to purchase a bra from you after reading an article and seeing your ads however I have changed my mind as I was very disappointed to see that once again a so called “Canadian” company has its products produced in China. Ughh. Shame. Shame. I am making a conscious effort to avoid anything not made in Canada. )

Asked by Florence W. Millett (3 years ago) Reply

I do not see your size chart! I wear a size 16 dress, 38” waist, and 41” hips.
I wear size 10 Hanes underpants. What is your size for me?

Answered by Terri S Fisher (3 years ago) Reply

Girl…..DO NOT ORDER!!!!!! I even went up a size (from their size chart) just to be safe and they are WAY too small! They won’t exchange or refund on underwear! I just threw away $96 in underwear!!!! Stay FAR away from this shady company!!!!

Knix packaging
Asked by Sasha (3 years ago) Reply

Love the sustainable packaging my Knix order came in. Who does Knix use for their packaging solution?

Best bra ever!
Asked by Nicole P (3 years ago) Reply

I ordered 2 wing-contour bras and when they arrived I quickly changed into one. I can’t believe how comfortable and how flattering it is! My breasts lifted where they should, felt like I gained a cup size. No side boob, I can move my arms better. I can’t wait for them to fit me perfectly. Don’t be discouraged by the tighter fit feeling. The website clearly states the more wash and wear the more it contours to your body. I showed all of the women at work and they were all impressed, emailed the link give $15 get $15. Thank you!

Asked by Michele D Johnson (3 years ago) Reply

Does knix support 36GG?

refused to refund my birthday money while saying they have no suitable bra for me
Asked by Belinda (3 years ago) Reply

I received a knix gift certificate for my birthday. First attempt with KNIX was my own money. I followed their sizing and bra way way too tight and there were not enough band hooks. I returned for a refund on my credit card. Was happy with the refund process that time. My second try was using my birthday gift card I bought the next size up and a different style. Still a lousy fit that allows my breasts to travel all over the place, even just working a desk. the cups (if you can even call them that) are way to small despite what their sizing suggests and they didn’t get bigger with 2 weeks of wear. They said they don’t have a bra product that fits me at the moment. I also bought a pair of underwear. The underwear fit is very big and far too tall. As a previous review said I can pull them all the way up to my bra with fabric to spare. I’m only 5ft tall. I paid part credit card/part gift certificate. They will only refund what went on my credit card. $12. The rest of my birthday gift is toast. I’ve tried two styles and two sizes plus underwear. I don’t recommend this company’s products.

Asked by davette (3 years ago) Reply

I bought one of your panties. The absorbant section was so short that they are worthess. It looks like you do not accept returns evem if they are not worn. Money down the drain and I will be shopping esewhefe next time.

Knix bras commercial
Asked by Joanne (3 years ago) Reply

Why does your commercial say I don’t have the time or patience for wire bras anymore ? It just doesn’t make sense
Silly comment in my option

Asked by Patricia Gibbs (3 years ago) Reply

As an MRI Technologist I am inquiring if there is any metal in the product, which can heat up during MRI exams and cause burns.

MRI Technologist
Asked by Patricia Gibbs (3 years ago) Reply

Is there any metal in this product?

No exchanges!!!
Asked by Terri S Fisher (3 years ago) Reply

It would be awesome if you made it aware upon ordering that no refund or exchange was available when purchasing underwear! I realize that after going through the WHOLE website and reading ALL of the “questions asked ” that it is addressed but NOWHERE when ordering! I have $96 in underwear that I have to throw away!!! I love the product but they are just too small. Would live to exchange for larger size. Horrible business!!!!!

No exchanges!!!
Asked by Terri S Fisher (3 years ago) Reply

DO NOT ORDER unless you are absolutely sure of size! You can’t exchange or get refund on any underwear! NOWHERE upon ordering does it say this! I have $96 in underwear to throw away!😥

Asked by Debra L DeSanto (3 years ago) Reply

I cannot purchase any item made in China. What about the USA!!!

Underwear is not pee-proof
Asked by Kate Murray (3 years ago) Reply

I am sorely disappointed in this product. The underwear is not at all pee-proof. Avoid this brand and find another. Do not waste your money here.

Ask the community or leave a comment

Your email address will not be published. Required fields are marked *

This field is required