Knixwear Underwear Review: The ultimate Guide

About Knixwear

knixwear Review

Knixwear is an underwear brand dedicated to creating high-quality, comfortable, and super-absorbent underwear that makes you feel good in your own skin.

Knix Underwear is for ladies who want to get on with their life and don’t want to be concerned with bladder troubles, unsightly leaks, or breast leakage. This Knixwear review will examine if the brand accomplishes its objectives and why it is so popular.

Our reviews are unbiased, objective, and non-sponsored. When you buy via links on our site, we may earn a small commission at no cost to you. As an Amazon Associate, we earn from qualifying purchases.

Knixwear Overview

A little more about Knixwear: over the last nine years, this company has achieved tremendous success; currently, a Knixwear item is sold every ten seconds, which is pretty impressive.

The success of this company is due to the quality of its products. You will not see high-paid models promoting this brand, instead you’ll see real women who are seeking a brand that meets their everyday needs while also looking attractive. Visit Knix’s Instagram feed to read stories about everyday women and how Knix has impacted on their lives.

Knix Bestsellers

  • Evolution Bra
  • WingWoman Contour Bra
  • LuxeLift Pullover Bra

Knix Underwear Reviews

knixwear Review

What We Like!

  • Receive 10% off your first purchase
  • Great Returns policy
  • Products offer excellent functionality and quality

What We Don’t Like!

  • Expensive
  • There is not a wide selection

Why Buy Knix Underwear Products?

Wearing a nice pair of underwear that keeps you comfy and fresh throughout the day is an investment worth making. Knixwear creates high-quality items that fit the demands of every woman while also looking amazing.

The Knix period underwear collection is exceptional; moisture is wicked away from your skin, allowing you to carry on with your routine without fear of leaks or embarrassing stains.

Knix Underwear Reviews

Knix designs underwear for everyone; you’ll find designs in high rise, bikini, shorts, cheeky, and thongs. Underwear is created to be seamless, smooth, and invisible, so you’ll feel comfortable all day long.

What Absorbency Levels Does Knix Underwear Offer?

knixwear Review

You can choose from four different absorbency levels:

  • Super Absorbent underwear absorbs approximately eight tsp of liquid, equivalent to eight regular tampons worth. They are a total replacement for disposal period products.
  • High-absorbent underwear absorbs slightly less, absorbing four to six tsp of liquid.
  • Medium-absorbant underwear: This medium-absorbent underwear is an excellent backup to your usual period product, meaning you can stay confident throughout your heaviest days. This type of Knix period underwear absorbs up to three tsp.
  • Then, we have the light-absorbent underwear, which protects you on your lighter days.

How Do You Wash Knix Period Underwear?

You may be wondering how to wash the Knix period underwear; well, Knix has made that easy as well; simply put them in your machine on a cold cycle with mild detergent and tumble on low heat.

It can be pretty daunting to change from your regular period product to period underwear. Knix period underwear has been designed to be entirely relied on; you do not need a backup. One recommendation is to ensure you have purchase the right absorbency level for your menstrual flow.

Knix Period Underwear

For those of you, who are fed up with expensive, uncomfortable disposal pads or tampons, Knix period underwearcould work for you. Knix period underwear has three layers that keep you safe during your entire cycle.

  • The first layer is an anti-odor top layer. This layer removes moisture from your skin, so your clothes don’t smell as bad.
  • The second layer, the inner layer, absorbs all the liquid and locks it away.
  • Finally, there is a leak-resistant layer on the outside of the underwear; this layer protects your clothes from spotting.

With one in four women suffering from leakage during their monthly cycle, Knixwear underwear is a great all-month-long underwear option.

Knix Super Leakproof Boyshorts

knixwear Review
Knix Boyshorts

The Super leakproof boyshorts are the most absorbent period underwear ever, absorbing the equivalent of eight tampons of blood each time you wear them. You can discard disposable products in favor of these extremely comfortable and machine-washable boy short underwear with a super absorbency rating.

Knixwear’s Super Leakproof boyshorts cost $30 and come in seven standard colors as well as several limited-edition colors.

Are Knix Super Leakproof Boyshorts Worth It?


Customers have expressed their delight at the comfort of the extremely absorbent boy shorts. Customers praise them as soft and extremely comfy, as well as fitting well. According to one customer, they felt as if they were wearing nothing since they were so comfy. We did find one negative review that shared disappointment that the pad section was too far forward and was heavy.


The boyshort’s general performance was also praised, with buyers stating that they performed admirably on days of high flow and that they appreciated not having to worry about leakage. A few consumers discovered that they did not always last a full heavy day, but their periods were extremely heavy.

Knixwear Leakproof Bikini Underwear

The Leakproof bikini is machine-washable, comfortable bikini underwear that features Knix’s patented leakproof technology, which absorbs up to 3 teaspoons of liquid (blood, pee, or sweat).

There is moderate coverage through the hips and bottom, but the classic mid-rise silhouette has a gusset that is ultra-thin and absorbent. Its length ranges from about 7.5 to 8.5 inches.

knixwear Review
Knix Underwear

This medium-absorbent bikini underwear provides confident coverage in the front and back. It can be worn alone on light days or as a secondary layer of protection on those heavier days.

Perfect as backup protection on heavier days of your cycle, on its own on lighter days, or assisting you in dealing with light bladder leaks.

Are Knix Leakproof Bikini Underwear Worth It?


One customer described the comfortable, light leakproof underwear as the best underwear they had purchased. Additionally, customers found the underwear to fit perfectly around their waists and legs, making them feel secure without digging in. One customer shared that the underwear can be worn anytime to help with sweat or small bladder leaks, and it made a huge difference in their comfort levels.


It was impossible to find a negative comment about the leakproof underwear’s performance, as so many buyers reported that the underwear absorbed all of their menstruation while also providing them with confidence throughout the day.

I love these underwear so much! They have literally changed my life to make my period much less stressful – almost to the point that I forget I’m in my cycle! I don’t stress about leaks ever!!

Five-star review @Knix.

Wish I could give these 5 stars, I loved them for the first few wears. At that time would have highly recommended! Unfortunately, after about 2 or 3 wears and following the wash instructions, they stretched out a ton. I followed the sizing chart and ordered size small. They are so saggy and barely wearable now. Definitely disappointed based on the price point. Still recommend the product overall, but caution on them stretching out.

One-star review @Knix.

Knix Bras and Tops Review

Now for our review of the Knix bra. Knix offers four different styles of bras: the wing lady shape bra, the evolution bra, the padded V-neck bra, and sports bras. Before you decide on the style of bra you desire, Knix offers a virtual fitting service that you should take advantage of.

This complimentary service connects you with a Knix customer care specialist via video chat to assist you in precisely measuring your bra size. Only a soft measuring tape or a ribbon string and a tape measure are required.

Additionally, the Knix website has useful size charts. All Knix bras are constructed with bonding technology for added comfort.

Knix WingWoman Contour Bra

knixwear Review
Knixwear Bra

With a plunging neckline and molded foam cups that lift and separate to give you great shape and definition, the wireless WingWoman Bra is a must-have. Comfortable and lightweight the Wingwoman contour bra provides medium support, extra coverage on the side and back to prevent sideboob and overspill. Extra stretch in the band offers incredible comfort as the bra adapts to your shape.

Are The Knix WingWoman Contour Bras Worth It?


Customers offered a variety of complimentary remarks regarding the wingwoman bra. In general, buyers praised the fit and comfort. Additionally, the bra provides superior support and comfort, and the soft, silky woven fabric is a huge hit with consumers who rave about how great it feels against their skin. There were a few unfavorable remarks, such as that the straps were too narrow and dug into their shoulders, and that many consumers got the incorrect size due to their mistaken belief that Knix bra sizes were incorrect. However, many of these women were very happy with how the customer service team handled their situation and with their new bras after that.

Knix Evolution Bra Review

knixwear Review
Knixwear Evolution Bra

Knixwear’s Evolution Bra is a reversible, wire-free bra that provides 360-degree support. The bra is supportive, comfortable, and versatile. The bra is crafted from a quick-drying, odor-resistant fabric that will keep you dry all day. This bra adapts to your unique shape thanks to its seamless construction and 4-way stretch fabric, and its higher neckline prevents spillage.

This is a highly versatile bra, priced at $55. You can flip it inside out and wear it in a different color or cross the straps to create a racerback.

Is The Knix Evolution Bra Worth It?

Customers rave about how fantastic the bra is for everyday wear because it is lightweight, quite comfortable, and gives excellent support. Additionally, they state that it is an excellent alternative to underwire bras because it provides the same level of support while being significantly more comfortable. As with the other bras that were looked at, users found that the bras’ sizing was not consistent, which led to poor fit and discomfort.

These are good bras. I ordered 4 last year. This year I ordered 2 more of the same product and size. Unfortunately, it looks (and feels) like the sizing has either changed or the sizing is inconsistent.

One-star review @Knix.

Knixwear Sports Bras Review

Knix produces three types of sports bras:

  • Catalyst Sports Bra
  • Longevity Sports Bra
  • Luxelift Pullover Bra

Catalyst Front Zip Sports Bra

knixwear Review
Knixwear Sports Bra

One of the most supportive Knix sports bras available, this front zip bra features an ergonomic zip that glides open smoothly and an inside flap that blocks out any sensation. The performance molded cups separate your breasts and firmly secure them in place, significantly reducing any movement, and the adjustable band and straps ensure that you’re getting the right amount of support precisely where you need it.

Is The Knix Catalyst Front Zip Sports Bra Worth It?

According to reviewers, it provides excellent support, has adjustable bands, a comfortable front zipper, and is easy to put on and take off. Customers report that the bra feels tight at first, but gradually conforms to their shape.

Are Knix Bra’s Worth It?

As part of our Knix bra review, we’ve checked out what customers really think of the Knix bra. A large percentage of customers love their bras, with customers stating it’s the most comfortable bra they’ve ever worn, one even going as far as saying she forgot she was wearing it.

Knixwear bras provide excellent support and provide women with a great shape as they mold to their bodies. The bras are invisible under your clothes, and you’ll be pleased to know that the majority of women reviewing the products stated they had no bulges or visible straps.

Knixwear Postpartum Review

I’m incredibly impressed with Knix’s postpartum selection. I wish these products had been designed when I was nursing my three children.

Not only do they produce leakproof nursing tanks, but they also offer high-rise underwear that flatters your new curves, leakproof pads to give you that extra security, and a pump-ease hands-free pumping bra.

Knix Leakproof Nursing Tank

knixwear Review
Knixwear Bra

This wireless nursing tank bra features removable absorbent pads that provide leakproof protection and eliminate unsightly stains. It also has premium easy snap clasps that make feeding times much easier with one-handed access, and the built-in support works with your body to prevent any size fluctuations from becoming an issue.

Is The Knix Leakproof Nursing Tank Worth It?

Customers praise the tank for being comfortable, flattering and for providing excellent support. The leakproof pads are perfect, and customers love not having to worry about leaking through onto their clothes.

I bought this tank in the nude and black. The tank is leak proof, flattering, and easy to nurse in. The only thing keeping it from five stars is that the black and nude seems to be made from different material.

The nude is scratchy and not as stretchy as the black and is oftentimes uncomfortable. If the nude fit and felt the same as the black, five stars all around. I still recommend the product as even the nude gets the job done; I just wish it was more comfortable. They do run small, so order a size up from your usual shirt size.

Three-star review @Knixwear.

Knixwear Shapewear Review

Knix’s latest range is the Shapewear range. It’s been designed to enhance and celebrate your natural shape.

Shapewear provides you with underwear that fits your body. You don’t have to squeeze yourself into this underwear; the brand will enhance all your curves. It does this by using the latest in fabric technology. The brand lets you be yourself and feel confident in who you are.

Knix Shaper Bodysuit

knixwear Review
Knix shaper Bodysuit

The Knix bodysuit compresses your front and back; the fabric hugs your body while smoothing and enhancing your natural shape. It features built-in wireless support for an unbelievable lift, removable padding for a great shape, and customizable, adjustable straps to complete your look.

Is The Knix Shaper Bodysuit Worth It?

The shaper bodysuit has a medium compression level and is adjustable; it is incredibly comfortable, flattering, and fits like a second skin, to name a few of the compliments received.

This is more like a 3.5-star rating. I wanted to try out a full shaper bodysuit, so I gave this one a try. The good: the sensation of wearing it is close and supportive but not tight and restrictive. I liked the smoothing effect. The bra-back style hook and eye closure in the crotch gusset is much easier to deal with than my fears had led me to believe.

The bad: Length fit. Listen, I’m 170cm tall. That’s at the top end of average, but it’s still average. But there was simply not enough body length for me. The bra cups were way below my breasts, and there was nothing I could do about it, so my purchase price was a total loss.
Do I rec it: yes, but only if you are 160 cm tall or below.

Three star review @Knix.

Knix Underwear Reviews From Other Sources

knixwear Review

As part of this Knixwear review, we have reviewed various websites to see what women say about the Knix brand.

On the Knix website, each product has a review element; some products have over 3,000 reviews and the majority for 4 out of 5 stars.

Here are what some of the customers are saying

This is my favorite of the Knix leakproof line. It’s somewhat higher cut than what I consider traditional boyshorts, but it has more coverage than the Knix bikini. It fits my body shape perfectly, so it doesn’t ride up.

taken from Knix website – this customer gave a 4 out of 5 rating

I like the fit and feel of this fabric, very comfortable, leakproof as advertised. I needed an underwear drawer overhaul and bought ten pairs and have used them daily for four months.

There are quality concerns though, the seams in the crotch are coming undone in several pairs. Quite frankly, I expect better underwear of this price that have been cared for according to manufacturer instructions. I have underwear that is far outlasting these that cost a fraction of the price.

Taken from the Knix website – this customer gave a 3 out of 5 rating

Knix is active on social media and has 122,000 followers on the Knixwear Facebook page, 363,000 followers on the Knixwear Instagram page, and 50,000 on the KTbyKnix Instagram page.

Where Can You Buy Knix Underwear?

knixwear Review

You can predominantly find knix underwear on their website. Knixwear has two retail stores in Toronto and Vancouver, Canada.

Knix Underwear Discounts and Promotions

During our search for Knixwear discounts and promotions, we found several promotions.

Top Drawer Rewards

Knix’s loyalty program is called Top Drawer Rewards, you can join for free, and every time you shop, you will receive points, which you can then redeem for exclusive discounts.

The more points you earn, the better the benefits. There are three levels of benefits:

  • The superfan receives free standard shipping on all orders over $75, a 10% birthday discount, and early access to sales.
  • Knix Champion customers must spend $250 annually; champions will receive $5 standard shipping, a 15% birthday discount, exclusive offers, and early access to sales.
  • Passionate badasses must spend $450 annually; these customers will receive free shipping, a 20% birthday discount, exclusive offers, quarterly product giveaways, and early access to sales.

You might wonder what you can redeem your points for, well that bit is easy:

  • 100 points = $10 off
  • 200 points = $20 off
  • 300 points = $30 off
  • 400 points = $40 off

Share and Save

Knix is also keen for you to share the news about their fantastic products; by signing up for this promotion, you can give your friend $15 off their $50 or more order, and in return, you’ll get $15 off your next order.

Discount code

All customers receive 10% off their first order.

Frequently Asked Questions

knixwear Review

Can I return my Knix Underwear?

All underwear bottoms are final sale; you can not return them for a refund or exchange.

Sales items with more than a 20% discount, you can exchange for another item or receive a store credit.

All knix bras and tops can be returned or exchanged with 30 days of delivery.

Clothing and Swimsuits can be returned or exchanged within 30 days of delivery, they must be unworn, with the tags and sanitary sticker is still in place.

Where Does Knix ship?

Knix ships across the US, Canada, and internationally.

Canadian Shipping Costs

For Canadian customers, you will receive free shipping on orders over $95CAD. A shipping charge of $10CAD is due on orders under $95CAD if you reside in central Canada. The amount increases to $20CAD for customers living in NWT, Nunavut, and Yukon.

Shipping To The US

You will receive free shipping on all orders over $75, and your item should be with you within three to ten working days.

If you place an order under $75 will pay a $7 shipping fee; again, orders will be received within three to ten days.

Shipping Internationally

If you are purchasing internationally, you will receive free shipping on orders over $150; you should expect your order to arrive within ten to twenty-five working days. There is a $20 shipping fee for orders under $150.

Where Is Knix Underwear Made?

All Knixwear products are designed in Canada. The products are then manufactured in socially and environmentally responsible factories across the Far East. Knixwear is committed to ethical sourcing.

Knixwear Contact information

You can contact Knix in a variety of ways:

Chat with someone from the Knix customer empowerment team, using the live chat option anytime between 8 am and 8 pm EST.

Phone No: (647) 691-5544 (available 8.30am to 7.30pm EST)

Alternatively, contact them via or

Do GN Guide Recommend Knix?

Absolutely, the Knixwear brand not only produces high-quality items and provides excellent customer service, but the products also feel great and protect women throughout their busy days.

Other underwear providers that may be of interest to you include:

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