An Honest Knixwear Review: Should You Check Them Out?

Knixwear was started in 2013 by Joanna Griffiths, who set out to solve women’s postnatal problems of “little leaks.” You see, she didn’t realize that women who give birth are often left to deal with leaks when they sneeze, laugh, and jump. She saw this as a problem that deserved a solution.

Today, Knixwear has a whole line of products designed to keep pregnant and postpartum women looking and feeling their best during such a vulnerable time.

How Many Good Knixwear Reviews Are There?

With all the buzz around this apparel, we'll show you what women are really saying. Let's take a closer look!

Knixwear’s mission from their website: “We believe it’s time that all women lived totally, unapologetically free. Free from judgment. Free from self-doubt. And free to be yourself.”

We love reviewing apparel products for women! Knix Wear’s mission is certainly one that the women here at Fit Healthy Momma can stand behind, but do the products deliver on that promise? Let’s dive in and take a look.

Knixwear Underwear

Let’s begin with their underwear line. Knixwear’s underwear has been dubbed as “the world’s most comfortable underwear” by the company. Each of their underwear features seamless construction, no bulky stitching, and technology that prevents bunching, pinching and rolling—three things we never want our underwear to do.

These underwear are touted as so seamless that they’re even invisible under white riding pants in the equestrian community. If you’re like us and you love wearing leggings, seamless underwear that doesn’t roll and bunch are a must.

Knixwear underwear comes in a few different varieties: leakproof, athletic, essential underwear, and thigh saver. Next, we’ll break each of these down for you to review.

Leakproof underwear

This wouldn’t be a very good Knixwear review if we didn’t take a look at their most popular product and the one that started it all, their leakproof underwear.

Their leakproof underwear is designed from top-of-the-line Italian textiles. There’s a built-in panty liner that promised to absorb 1-3 tsp of liquid without adding any bulk to the underwear. Additionally, there’s a quick-dry, moisture-wicking gusset that dries two to three times faster than the regular cotton used in traditional underwear.

This line has a total of seven different styles to choose from. Let’s take a look at each of them:

  • Athletic Leakproof Bikini: This is a relaxed fit, mid-rise panty option that features medium coverage of your hips and butt, and you guessed it, it’s great for the gym and during activities. The athletic pairs feature their stretch tech fabric which gives them a more relaxed feel.
  • Athletic Boyshort: This pair is very similar to the traditional athletic pair, but with a bit more coverage and a higher rise.
  • Athletic Thong: Another mid-rise athletic option, this time with minimal butt coverage.
    Everyday Leakproof Bikini: The “Everyday” line has a closer fit and feel than the athletic line, and the bikini style provides medium coverage of your hips and butt.
  • Everyday Leakproof Boyshort: Similar to the Athletic boyshorts, but with the closer fit. These are a higher rise than the bikini option.
  • Everyday Leakproof Highrise: These are the highest rise option; they sit at your natural hips. Coverage is medium.
  • Everyday Performance Bikini: These are a mid-rise with medium coverage and are made to move comfortably with you during any and all activities.

All of their leakproof underwear are great options for postpartum underwear for moms who have more going on down there in their postpartum phase.

Athletic Underwear

Next up is Knix Wear’s Athletic underwear line. This line is characterized by its seamless, moisture-wicking technology, and stretchability. These are designed to “maximize movement and comfort during your most intense workouts.” The fit of the athletic line is a bit more relaxed than the Everyday line.

These are designed to keep you dry, fresh, and odor-free through sweaty, intense workouts. Let’s be honest, it can get uncomfortable when we’re wet and sweaty during a workout. This line features four styles, including:

  • Bikini: mid-rise, medium coverage
  • Boyshort: high-rise, extra coverage through the hips and butt
  • Thong: mid-rise, minimal coverage
  • Cheeky: low-rise, light coverage

Everyday Performance Underwear

The Everyday Performance line features “light-as-air fabric and gives you that naked-but-better feel, while soft velvet flocking hug your curves.” Similar to their other lines, these are seamless under clothes but feature a closer, more snug fit than the Athletic line.

The Knix Wear Everyday Performance underwear comes in the same four options as the Athletic line, allowing you to choose which style and coverage suit your body and style best.

Knixwear Thigh Saver Essentials

The last style of underwear in our Knixwear review is the Thigh Saver Essentials. These are long leg underwear that features the same seamless design and built-in gusset, but with additional design features that help prevent uncomfortable chafing. These are a great option for wearing under dresses and flowy outfits that may encourage your thighs to get close.

Knixwear Bra Reviews

Next up in our series of Knixwear reviews is their bras. Keeping with their desire to provide women, both postpartum and otherwise, comfortable and fresh, all their bras are underwire-free and come in a full range of sizes from an A to a G cup. According to their website, their bras are, “comfortable performance fabrics that evolve with your day.”

8-in-1 Evolution Bra Review

Perhaps their most popular and famous bra is their 8-in-1 Evolution bra. This style comes in a padded and unpadded option, two sets of detachable straps, and reversible colors to allow the user to choose from eight different wearing options.

The padded option is subtle, adding “an extra layer of modesty, without volume.” This may not be your everyday bra due to its complexities, but we love having a bra handy for those tops that require a unique strap set up in order for us to pull it off.

Padded V-Neck Bra

This lightly padded bra features a low-cut neckline, supportive straps and a style that’s perfect for everything from working out to a night on the town. There’s no wiring, making it incredibly comfortable.

The WingWoman Contour Bra

The WingWoman Contour Bra is designed to eliminate that pesky side and back spillage that we get with some bras that pinch and squeeze our breasts into unflattering positions. This bra provides “natural, underwire-free lift and separation.”

Knix Sports Bras

Knix wear claims that all their bras are comfortable enough for working out, however, they also have a whole line of Knix wear sports bras that are designed to power you through the most intense workouts with a thought about your bra and comfort. These bras are “comfortable and supportive for large breasts too, with no wires and no distractions.”

There are three different Knix sports bras to choose from: Catalyst Sports Bra, Racerback Evolution Bra, and Longevity Bra. Each of these styles provides comfort and support for even the toughest workouts. We love that Knix wear caters to women with all different breast shapes and sizes.

Frequently Asked Questions

Here are some of the most commonly asked questions about Knixwear and its products. We took the time to explore these questions and provide you with the best answers so that you can make the most informed decision when purchasing your undergarments.

How Much Do These Products Cost?

Where Can I Buy Knix Wear Garments?

How Do These Garments Hold Up?

Do They Fit True to Size?

What’s Knixwear’s Return Policy?

How Fast Will I receive My Undergarments?

What Are Some Alternatives?

Based on the unfavorable reviews regarding the sizing and the fact that you have to wait up to 10 business days to receive your order, you may be looking for some Knix Wear alternatives. We’ll run through some of our favorite Amazon options that closely rival Knixwear but feature lower prices, faster shipping, and more cohesive sizing.


Best Affordable Leakproof Underwear

Bamboo Viscose Fiber Brief Menstrual Leakproof Panties:

You can snag this leakproof underwear for less than $30 for a pack of 5. There are dozens of 5-star reviews and they’re perfect for everything from postpartum bleeding, period bleeding, and urinary incontinence. Never worry about embarrassing leaks again!

5 of 5 Stars

Best High-Waist Leakproof Underwear

Bambody Absorbent/Overnight High Waist Panty:

All you have to do is check out the almost 300 reviews on this leakproof period underwear to see that these are an awesome buy. They’re very affordable and many women are saying that they’re more absorbent and comfortable than Knixwear and other pricier alternatives.

4.5 of 5 Stars

Best Postpartum Underwear

Annenmy Women's High Waist Cotton Underwear:

Any women who've been through the postpartum period knows that comfort is key, and these underwear are comfortable. There are over 700 awesome reviews and many from women who had a C-section and found this underwear to be the most comfortable ones they’ve tried. Even if you aren’t postpartum, you’ll love the look and feel of the smooth, high-waist that doesn’t roll, bunch, or fall throughout the day.

4.5 of 5 Stars

Best Anti Chafe Underwear

MELERIO Women's Seamless Boyshort Panties:

If you frequently experience uncomfortable thigh chafing, you need a pair of anti-chafe underwear that you comfortably throw on under your dress. This pair is an excellent alternative to the Knix Wear Thigh Saver line. They’re very affordable and also have over 100 positive reviews.

4.5 of 5 Stars

Best Seamless Boyshort Underwear

Ruxia Women's Seamless Boyshort Panties:

If you need a pair of underwear that offers a bit more coverage and protection without being constricting and uncomfortable, this seamless Boyshort underwear will fit the bill nicely. They’re lightweight, breathable, and perfect for everyone from postpartum to working out.

4.5 of 5 Stars

Best Seamless Everyday Bra

Warner's Women's Easy Does It:

We chose this bra as our favorite everyday bra thanks to its well over 1,000 positive reviews and its simple, yet comfortable design. It’s seamless, wireless, and supportive while maintaining a lightweight and comfortable feel. This bra can easily become your go-to for everything from long days in the office to a night out with your girls. And don’t worry, this bra flatters every breast size and shape, so you can feel confident no matter what type of top you’re wearing.

4.5 of 5 Stars

Best Seamless Sports Bra

MIRITY Women Racerback Sports Bras:

We chose this sports bra as the best seamless sports bra for a few reasons. First, you purchase them in a pack of two for a very affordable price. These are made from durable fabric that wicks sweat away without trapping it in the material and the level of support is amazing. I own these bras and they have been my go-to for well over a year now. They hold up nicely through many washes and will provide support for every breast size. I would recommend sizing up one as these can be quite compressive.

4.5 of 5 Stars

Final Thoughts Based on Real Knixwear Reviews

When the Knixwear brand came across our desk, we were excited to start digging in and seeing what they’re all about. While we certainly love the values and concept of their line, the Knixwear reviews online disappointed us, to say the least.

We need more companies like this to start promoting real women and their real bodies and issues, but it sounds like Knix Wear needs to go back to the drawing board with some of their designs and techniques to create a more accurate and consistent sizing for their garments.

Additionally, we’re disappointed by their return policy. Many of their competitors will happily take back garments that don’t fit and refund customer’s money.

All in all, this is a great brand with a mission and concept that we as women can all feel good about and with a few tweaks we think they could really take the market.

In the meantime, check out some of our Amazon recommendations for undergarments—we chose only highly reviewed and recommended pieces that are both quality and affordable. And the best part is, you’ll receive them within a couple of days and can rest assured that returning and getting a refund should you need to is simple and free!