About Knixwear

By HighYa Research Team
Published on: Feb 6, 2018

Knixwear advertises that by making the most comfortable wireless bras and seamless underwear available, they’re reinventing intimates for real life.

Specifically, the website tells us their garments utilize four-way stretch fabrics to mold to your shape, move with your body, and deliver comfort, in addition to moisture-wicking, anti-odor, and quick-dry performance so you can “conquer your day.”

Knixwear certainly seems to offer real intimates for real women, but does that necessarily mean that they’re right for you? What about their tanks, tees, loungewear, and accessories?

Buying underwear and bras is already frustrating enough. Here, we’ll help you make your purchasing process easier by providing the details you need to make an informed decision about Knixwear—starting with what they offer.

Knixwear’s Underwear Line

Dubbed “the world’s most comfortable underwear” by the company, each pair features seamless construction, a bonded technology that gets rid of bulky stitching, and the ability to avoid bunching, pinching, and rolling.

In fact, the company claims that their underwear is so seamless “that it has become a staple in the equestrian community — it’s invisible even under those super tight, white riding pants.”

Leakproof Underwear

Knixwear tells us that CEO Joanna experienced frequent stress caused by postpartum leaking, which is what inspired her to create the brand in the first place.

Made from top-of-the-line Italian textiles, their Leakproof line of underwear features a barely-there, built-in panty liner that promises to absorb 1-3 tsp of liquid (1-2 regular tampons worth), without a lot of bulk. They also feature a quick dry, moisture wicking gusset that’s said to dry two to three times faster than regular cotton, as well as carbon cotton to fight odor, across seven styles:

  • Athletic – A mid-rise option that provides medium coverage for the hip and rear end. Compared to the Everyday line, all Knixwear Athletic styles feature stretch tech fabric that will relax a bit more.
  • Athletic Leakproof Boyshort – Additional coverage in the hip and rear, and sit slightly higher than a Bikini.
  • Athletic Leakproof Thong – Another mid-rise option, but one that delivers minimal coverage in the rear.
  • Everyday Leakproof Bikini – The Everyday line hugs more than the Athletic line, and the Bikini style delivers medium coverage on the hip and rear.
  • Everyday Leakproof Boyshort – Extra coverage through the hip and rear, and sit slightly higher than Bikini.
  • Everyday Leakproof Highrise – Sits at your natural waist and offers medium coverage (similar to Bikini) in the rear.
  • Everyday Performance Bikini – Mid-rise and medium hip and rear coverage.

Athletic Underwear

Seamless, moisture-wicking performance underwear with stretch tech that’s designed to “maximize movement and comfort during your most intense workouts.” From a fit perspective, according to the Knixwear website, these will relax more than the Everyday line.

Each pair also comes with bonded construction for invisible panty lines, a quick dry gusset with carbon cotton for odor-fighting protection, and super-soft fabric. Styles include:

  • Bikini – Mid-rise and medium coverage through the hip and rear.
  • Boyshort - Extra coverage through the hip and rear. These sit a little higher than Bikini.
  • Thong – Also mid-rise, but with minimal coverage.
  • Cheeky – Light rear coverage and the lowest rise available.

Everyday Performance Underwear

Knixwear tells us that this line features “light-as-air fabric and give you that naked-but-better feel, while soft velvet flocking hug your curves.” The seamless, bonded construction means they’re invisible under clothes, and the line hugs more snugly than Athletic:

  • Bikini – Medium coverage and a mid-rise silhouette.
  • Boyshort – Extra coverage in the hip and rear with a slightly higher sit.
  • High Rise – Medium coverage in the rear, and sit at the waist.
  • Thong – Minimal coverage and a mid-rise silhouette.

Luxe Essentials Underwear

This Knixwear line boasts a super soft, moisture-wicking fabric, a comfortable velvety waistband, and mesh paneling down the side for comfortable sexiness. Sits at the natural waistline and provides medium rear end coverage.

Thigh Saver Essentials

Long leg underwear with the same seamless design, built-in gusset, moisture-wicking fabric, and thoughtful design to help avoid chafing as many other styles in the Knixwear lineup. Ideal for wearing under your favorite summer dress.

Knixwear Bras

All of Knixwear’s bras are underwire-free, provide support from an A to an E cup, and are said to feature “comfortable performance fabrics that evolve with your day.”

V-Neck Evolution Bra (Standard & Luxe)

Seamless, molded construction, thicker straps for extra support (straight or cross-back), and a v-neck silhouette that can hide under any top. Unlined and unpadded, so it molds to your natural shape.

The Luxe V-Neck version adds velvety detailing on the straps.

8-In-1 Evolution Bra (Padded & Unpadded)

Features reversible colors and two sets of detachable straps, allowing this bra to deliver eight different wearing options.

Knixwear also offers this in a padded version that features ultra-thin, reversible, breathable cups for “an extra layer of modesty, without volume.”

Longevity Bra

A medium-impact sports bra that Knixwear says can be worn on its own, or under any other workout gear. Features a long-line cut and a form-fitting, reinforced underbust for extra lift and support, moisture-wicking performance fabric, and unique back detailing. The cups will provide some measure of compression.

Knixwear Tanks & Tees

Evolution Tank

This pullover style tank is designed to act as a sleek base layer. It comes with a built-in bra that’s bonded and wire-free, with thin, removable cups to add shape and coverage without bulk, along with a secure, comfortable fit.

Fits up to a DD cup and can be worn on its own, or invisible under whatever else you choose.

Don’t Sweat It T-Shirt

A garment that uses Knixwear’s Fresh Fix Technology in the underarm panels to help block sweat, absorb moisture, and eliminate odor. The fitted silhouette helps maintain comfort and allows you to wear the garment under clothing, while the four-way stretch design won’t make you feel restricted.

Knixwear’s Knixteen Line

According to the website, Knixwear’s teen line features the same leak-fighting and period protection as their standard underwear line, including a seamless design, super soft Lycra Sports fabric, carbon cotton for odor elimination, and ‘Oh-No’ Proof Technology that uses a thin built-in panty liner to absorb up to 1-3 tsp of moisture (1-2 tampons worth).

These also feature moisture lock sides to keep leaks in, are lightweight and fashionable, and are easy to clean, so the company emphasizes they’re ideal for anywhere.

The biggest difference is that Knixteen styles boast “a different size set and silhouettes to match a growing body.” Available in Boyshort and Bikini styles.

How Much Do Knixwear Products Cost & Where Can You Buy?

Individually, Knixwear’s intimates are priced at:

  • Bras: $45 - $60
  • Underwear & Shorts: $20 - $38
  • Knixteen: $17
  • Tanks & Tees: $48 - $65
  • Loungewear & Accessories: $10 - $69

However, in many instances, you can save by bundling items or building complete sets. At $18/mo, the company’s Club Knixwear subscription program also delivers a new pair of underwear to your door once per month and allows you to skip a delivery or unsubscribe at any time.

Online US orders are charged a flat $8 S&H fee, while Canadian orders will be charged $10, plus tax.

In addition to directly through the manufacturer’s site, Knixwear’s intimates are sold through Amazon and TheGrommet.com, as well as dozens of in-store retailers throughout the US and Canada.

Money saving tip: If you’re an Amazon Prime customer, this could potentially help you save money on S&H charges.

Clothing (Bras, Loungewear, and Tanks) comes with a 30-day refund policy, less S&H charges, although according to the company's FAQ, they'll need to be unworn, with the tags still attached.

Underwear, whether worn or unworn, are not eligible for refunds or exchanges for hygienic reasons. Accessories are not eligible for refunds.

Customer support can be reached at info@knixwear.com.

What Can We Learn From Knixwear Online Customer Reviews?

On Amazon, Knixwear’s Moisture Wicking underwear had more than 30 combined reviews and an average rating of about four stars. Common compliments related to comfort and the soft, seamless fabric, while complaints frequently referenced less-than-stellar comfort or fit, and inaccurate sizing.

On TheGrommet.com, Knixwear’s Reversible 8-in-1 Bra had a total of 110 reviews and a 3.2-star average rating, with many of the same compliments and complaints.

Lingerie Detective provided an in-depth review regarding their experience with the Evolution Bra, and noted that they were pretty happy with it, overall. They liked that it centered their breasts, held them securely in place (even without an underwire) and lifted them away from their body, without causing any tissue folding. They also emphasized that the band and straps were super comfortable.

However, she pointed out that since the bra features two sewn loops at the strap, it’s technically not 100 percent seamless. Regardless, she recommended it as a great bra for everyday wear, including low-impact sports, sleeping in, and hanging around the house.

As a company, Toronto-based Knixwear launched their Evolution Bra via a 2015 Kickstarter campaign, where it on to raise more than $1.1 million—followed by an Indiegogo campaign that raised another $1.6 million.

The company was founded in 2012 by CEO Joanna Griffiths, who previously worked as Director of Business Development for Bre.ad (acquired by Yahoo!), Promotions Manager for CBC Television, and Media Relations Manager for the Toronto International Film Festival.

Knixwear held a B rating with the Better Business Bureau, as of 2/1/18, although their main page with reviews and complaint details wasn’t available during our research.

How Does Knixwear Compare to Other Intimates Companies Like Thinx, True and Co, and Thirdlove?

Did we encounter any seamless intimates company that offered an identical lineup of bras, panties, and other garments and accessories to Knixwear? No. However, this doesn’t mean they’re your only option when it comes to individual designs.

For example, Thinx’s line consists solely of anti-microbial, moisture-wicking, absorbent, and leak-resistant ‘period panties,’ although they offer a greater variety of styles, including hiphugger, hi-waist, and sport, in addition to some styles with cotton fabric.

Price-wise, Thinx’s lineup falls between $24 and $30 per pair, putting them relatively on par with Knixwear’s offerings. However, Thinx also offers a 60-day refund policy.

True and Co offers bras and panties like Knixwear, although in a much greater variety of designs, styles, and materials (no leakproof options), including their True Body seamless collection. Prices range between $44 and $64 for bras, and $16-$32 for undies.

Differentiating themselves, though, True and Co also sells lingerie and men’s underwear.

Like Knixwear, Thirdlove sells their own line of bras (t-shirt, full coverage, racerback, plunge, strapless, etc.), underwear (thongs, bikinis, and cheekies), and loungewear. However, like True and Co, Thirdlove also offers a greater number of styles and materials.

Prices typically fall at the upper end of the spectrum compared to the above competitors, with bras typically between $68 and $76, and between $12 and $15 for each pair of underwear (or, three for $27 in many instances). Thirdlove’s unique Try Before You Buy program also allows you to return their intimates if they don’t meet your needs, even after being worn.

How can you choose which of these options will best meet your needs, before handing over your hard-earned money? Let’s carry this thought over to the final section as we wrap things up.

Our Final Thoughts About Knixwear

We didn’t try any of the Knixwear lineups ourselves, but based on what we learned during our research and from online reviews, they seem to feature a unique seamless design that’s comfortable for most consumers, a broad range of styles, competitive pricing, and a 30-day refund policy.

However, unlike close competitors True and Co and Thirdlove, Knixwear doesn’t allow returns on underwear that’s been worn or had the tags removed. In reality, this means that as soon as you try their underwear, you own it.

» RELATED: Are You Wearing the Wrong Size Bra?

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Read 62 Knixwear Customer Reviews and Complaints

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Average Consumer Rating: 1.7
Rating Snapshot:
5 star: 8 4 star: 1 3 star: 2 2 star: 7 1 star:  44
Bottom Line: 15% would recommend it to a friend
Showing 1-11 of 62
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  • They cancelled my order, did not notify me and only refunded me when I contacted them to find out where my order was

    • Miami, FL,
    • Aug 21, 2019
    • Verified Reviewer

    I had a terrible experience with Knix and I never even got my order! Seven days after I placed my order, I checked their website to see when I should expect a shipping notification. The FAQs said I should have received one 2 days after placing my order, so I contacted them and spoke to a representative called Catherine. She informed me that the order was canceled because of fraudulent activity linked to the address...(The thing is, I paid via PayPal and they had my money...) I asked why I wasn't refunded or notified and was told they had a glitch in the system...Um, okay? She then offered to send my order to another address with a 20% discount or she could refund my money...Um, again - okay? Am I missing something? Why was the refund not issued when the order was canceled and why was I not notified? I then asked if they could send the order to the address I provided when I placed the order and she told me that they could not do that... Um, okay? So you have my order, you have my money and I am asking you to send my order to the address I provided and yet you won't because of fraudulant activity linked to the address. Um, I am definitely missing something! The conversation was very frustrating...I ordered with them because I read a review that their underwear was brilliant. Maybe I just had bad luck with them but I have a sneaky feeling that they do this to customers - a lot!

    Bottom Line: No, I would not recommend this to a friend

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  • False advertising and horrible customer support

    • Indiana,
    • Aug 16, 2019
    • Verified Reviewer

    To preface, it takes quite a bit for me to be dissatisfied with a product and even more to write a negative review. I'm an "it's good enough" and an "I'll give them the benefit of the doubt" type of woman. I'm usually more motivated to write something positive.

    Through the site's bra size text I was suggested for a 3, but their size chart put me in a size 4, so immediately I was confused. I went with 4, since I definitely didn't want a tight fit. When the bra arrived I was very excited to try a most comfortable bra and something with no underwire. I read the instructions and immediately tried to put it on, which was the first hurdle. It took me about 10 minutes to get it on, since it was SO tight. I could not even begin to try to clasp it behind my back. The instructions mentioned it needs to relax, but I was skeptical. I wore the bra for about 3 hours around the house before I literally couldn't stand it anymore and took it off. I gave it one more try on a more active day and had to leave my office and come home to change because I was so uncomfortable. It honestly felt like it was bruising my sides and back.

    So I contact customer service, and they were entirely unhelpful. Their only comment to my complaint and concern was that I must have picked out the wrong size. Nothing about helping with returns. Nothing about refund or store credit to try another size or a different product. The same happened after providing feedback through email. No follow-up no offer to help. Nothing. Will never recommend to a friend and will actually advise against other's purchasing anything from them. False advertising, poor product, and non-existent customer support.

    Bottom Line: No, I would not recommend this to a friend

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  • Awful, deceitful return policy

    • New York,
    • Aug 15, 2019
    • Verified Reviewer

    I can't believe this company...will not accept unworn bathing. It's terrible quality for $95 and they say their policy is final sale. There was no disclaimer what-so-ever. Stay away!

    Bottom Line: No, I would not recommend this to a friend

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  • Terrible

    • Colorado,
    • Aug 9, 2019
    • Verified Reviewer

    Extremely frustrated and disappointed. it’s a disaster of a bathing suit. Took the "removable" pads out only to be told that my nipples could be seen. There is no crotch in this suit, so I couldn’t even swim for fear of flashing people. This is a completely unsupportive suit sold under a non-refundable "every body" guise! Terrible! I will follow this up with as many reviews I can. So disappointing.

    Bottom Line: No, I would not recommend this to a friend

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  • Thigh saver

    • Toronto, Ontario, Canada,
    • Aug 7, 2019
    • Verified Reviewer

    I purchased 2 pairs of Knixwear Thigh Savers. Following the size guidelines, I ordered the XXL. Each individual item comes in its own sealed package. I tried on one pair but found it to be extremely big. I immediately contacted the company but was informed that they will not accept return on the UNOPENED Thigh Saver. They told me that they couldn't be sure that I hadn't opened it. Shortly after, I went to their Toronto showroom for a fitting, taking the UNOPENED Thigh Saver. Again, I was told that even though they could see that the package hadn't been opened their policy does not allow returns on Thigh Savers. UNBELIEVABLE. By the way, I was fitted with the Large size and they constantly fall down. I am very disappointed and will not buy anything else from them. BUYER BEWARE. Having said all of this, I have to say that the staff was very nice and helpful.

    Bottom Line: No, I would not recommend this to a friend

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  • 1 out 1 people found this review helpful

    Absolute garbage

    • British Columbia, Canada,
    • Aug 5, 2019
    • Verified Reviewer

    If I could give a negative 5 out of 5 I would. I ordered the bra and the thigh saver underwear. First off, the bra is not the most comfortable bra or even supportive, I have had more comfortable bras from Victoria's Secret and paid less.

    I got one wear out of the panties, washed them once and the glue that holds the panty seam together came apart. The one wear I got out of it was okay; however, the panty kept falling down. Worst money I have ever spent, I will stick to buying bras and underwear in-store at the Bay.

    Bottom Line: No, I would not recommend this to a friend

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  • False advertising

    • Wisconsin,
    • Aug 1, 2019
    • Verified Reviewer

    Bought the Razor Back Evolution bra and the Evolution Body Suit. Size chart in these two items said to get the XXL for my 38DDDD (size F on their chart). They are way too small in the cup area. And the straps are too short and dig into my shoulders. They say in the packing slip to wear it for a while and it will adapt and mold to fit my shape. Actually, I don't want any bra or bodysuit to relax. I want them to be supportive. I don't need the bra to stretch and not support my ladies. Also, I don't want the bra to adapt to my shape, I want it to shape me.

    Read the return policy carefully before you purchase, which I did not do. They will not give you a refund if you received 20% or more off on a sale item. And for some reason, they will not give me a refund on the bra I paid full price for. They will do an exchange but their items don't fit me so I cant do an exchange. I sent an email to their customer service just now to get a refund on the bra. 7/25/19. We'll see how that goes, then I will update this review if this site will let me. Thank you for giving me the opportunity to leave this review.

    Bottom Line: No, I would not recommend this to a friend

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  • 2 out 2 people found this review helpful

    Horrible customer service and return policy - deceptive practices

    • Georgia,
    • Jul 14, 2019
    • Verified Reviewer

    I ordered 2 bras to try since Knixwear kept popping up on my social media feed. Evidently, when I used the promo code, I suddenly became unable to return my bras. Fast forward...I received my 2 bras and excitedly tried one on. It is THE MOST HORRIBLY FITTING BRA EVER! I went back to my order email which not only showed $0 under discounts it also said NOTHING about not being able to return my purchase. I went to the website and when I put my return info in, it said I was unable to return it. So I emailed the company...they said they "tried to make their sale return policy as clear as possible." But for the first time user, it was NOT clear. They're luring you in as a new customer and then having zero quality customer service is both deceptive and wrong. I would definitely tell anyone to not order anything from Knix!

    Bottom Line: No, I would not recommend this to a friend

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  • 2 out 3 people found this review helpful

    Defective item; very dissatisfied

    • Moose Jaw, Saskatchewan, Canada,
    • Jun 19, 2019
    • Verified Reviewer

    I ordered two evolution bras at the end of April as part of their buy one get one half off promotion. I ordered the size based on the online quiz you take on their website. When the bras arrived I thought they seemed a bit large but they were comfortable so I figured I’d give them a chance. I actually retook their online quiz and this time the results were 3 sizes smaller than the last time even though I’d given the exact same answers.

    So fast forward a month and a half to June and these bras are completely useless. They have completely stretched out and don’t regain their shape even after careful washing - not one but BOTH bras have the exact same problem. Both bras are completely unwearable now as they offer no support whatsoever. For the amount of money I paid, this is ridiculous. I emailed customer service and was told that because it was more than 30 days I couldn’t return or exchange them despite the fact that they are useless to me and I’m out $70. The equally useless customer service rep Hannah instead offered me 20% off my next order. I have assured them I will never be ordering anything from this company again and I have also informed the BBB which unsurprisingly they are not accredited with.

    Bottom Line: No, I would not recommend this to a friend

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  • 3 out 4 people found this review helpful

    Poor fit, bad return policy

    • New Jersey,
    • Jun 13, 2019
    • Verified Reviewer

    I purchased six pair based on their size chart (and my regular underwear size), but they are way too small. Turns out you cannot return/exchange them - no exceptions. I totally understand not being able to return the pair I tried on, but the rest are in sealed packages?! Complete waste of $100+. FYI...the competitor brand allows returns - go with them.

    Bottom Line: No, I would not recommend this to a friend

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  • 3 out 4 people found this review helpful

    Refuse to exchange/return swim wear

    • New Jersey,
    • Jun 7, 2019
    • Verified Reviewer

    I purchased a two-piece bathing suit and the top was too big. I tried to exchange it and was told that all swim wear is final sale. I paid full price. There was no warning that swim wear was final sale. The woman at customer service told me that I should have spoken to a Knix salesperson before purchasing a size. They stole $100 from me.

    Bottom Line: No, I would not recommend this to a friend

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