My Honest Review of Every Knix Product I’ve Tried


My Honest Review of Every Knix Product I’ve Tried

woman throws knix underwear into the air

Knix has been my go-to underwear brand for a few years now. From the first pair of underwear, I was hooked! I’ve tried so many of their products from regular undies, period products, bras, swimwear, and most recently, activewear. I am a major fan of a lot of their stuff, but there are a few things that just didn’t do it for me.

This year I applied to be a brand ambassador, not really thinking much of it. But when I got the email that I was accepted to their program, I was pumped! If you shop using my link you will receive 10% off your purchase, and I will receive a commission at no extra cost to you. So thank you for supporting me by using the italicized links in this post!

Let’s jump right into Knix products and what I love about them. I think it makes the most sense to start with the cornerstone product of their brand, period underwear.

Leakproof Underwear

Leakproof underwear is one of the Knix products I absolutely rave about to anyone who will listen! I know that periods can be a touchy subject for some, but it’s a monthly reality for many of us. Knix takes all the stress out of when your period is going to come, relieves the mental drain of needing to stock up on tampons or pads, and helps reduce waste in the landfill. A win from all sides.

They have different absorbency levels (one pair can absorb up to 8 tsp of liquid!) for each style, so you can find exactly what suits you. You can even get a period kit with a bundled discount if you’re not sure of where to start. Even if you don’t deal with periods, these are an amazing option for anyone dealing with light bladder leakage. They also work amazingly well if you have issues with sweating. The fabric wicks away any moisture and will leave you feeling comfortable and fresh.

These underwear come in two different fabric options. The original nylon-spandex blend, and a newer cotton-modal blend. I have tried both and I’m not a fan of the cotton-modal. It’s really cozy and soft, and it remains that way after many washes. However, I find it really digs into the skin in the way the original fabric doesn’t. It also feels like plain old cotton underwear to me, whereas the nylon-spandex blend feels more luxurious, and who doesn’t want to level up every day?! If you do want to try the cotton-modal, I would suggest going up a size.

hot tip: I love to gift leakproof underwear to new moms to have on hand for those postpartum days. They’re perfect for recovery and beyond!

Everyday Essentials Underwear

The Knix everyday underwear is all the same things I’ve mentioned above, without the period or moisture protection. They are the same lovely fabric on the body, but the gusset doesn’t act like a pad. These underwear are awesome for every day, and I especially love the thongs when wearing pants and the high-rise briefs when sleeping or wearing dresses or rompers.

The reason I love these cuts so much is that they have more coverage in the front. I find they stay up on my midsection and don’t roll down when I’m sitting, or when I’m being really active like during a workout. I have a more curvy midsection with big thighs and a big butt (thank you Universe!) so I find the bikini cut doesn’t stay as high up on my body as I would like, whereas the thong and the boyshort styles stay put. The high rise are my hands down favorite, but they are so high rise that they will pop out the top of even your highest high rise jeans lol. So reserve those for bedtime and dresses!

Thigh Saver Shorts

Speaking of thick thighs and wearing dresses, you might want to grab a pair or two of the thigh saver shorts! If you have any issues with chaffing, these are going to be a lifesaver for you in warmer temps! This style comes in a 4″ length, and a 6″ length. I have the 4″ length as I generally wear above the knee dresses and don’t want the shorts showing when I’m sitting down or crouching to help the kids at the park.

I was really skeptical that these would work. I thought for sure they would roll up at the leg seams and roll down on the stomach — as that is my usual experience with any kind of shapewear. I was pleasantly surprised that didn’t happen! I think the key to ensuring it doesn’t happen is making sure you order the right size for you. This is where the Knix return policy comes in handy!

Amazing Return Policy

Knix stands behind its products, so you don’t ever have to feel like you’re locked into a purchase you don’t love. This is one of my absolute favorite things about their brand, though it is impossible to pick one or even just five of my favorite things about them (read in full here). The entire page is clear and concise without any complicated jargon to confuse you. They know you’re going to love your products, and will not badger you if for some reason you’re unhappy. This return policy is a 10/10. Just look at this:

“All Knix Bras, Underwear, Tops (including Bodysuits), Shapewear, Masks, and Pads are eligible for return or exchange within 30 days of delivery. We want to make sure you can give your new Knix products time to mold to your shape and get comfortable. Do what you want to do in them, and wash them as much as you like. If you find the fit still isn’t right, message us to get a personal fit consultation before returning for the right size.”

Like hello!!! Take my money, please! It’s in good hands!


A classic style with leakproof protection

I am not the type to purchase a bunch of different swimsuits. I like to buy 1-2 quality ones to have as long as they last, and then maybe one cheap one to wear in highly chlorinated pools where they’re sure to be destroyed. So when I found out that Knix made a swimsuit that had leakproof protection, I knew I needed to have it!

We go swimming a fair amount, and we head to the lake many times throughout the summer. This swimsuit has saved me so much stress and worry about dealing with periods and water. The design is classic and simple, so it’ll never go out of style. It’s super flattering with just enough compression and lift to make me feel confident without making me feel like I’m a stuffed sausage. Perfection in my books!

While I’m all about the one-piece, they also have two pieces available if that’s more your vibe. I love that they have inclusive sizing for all body types. Rock the swimsuits ladies! You only live once!

All the Bras

When I said I was a super fan, I meant it. If you think we’re even close to done chatting about the things I’ve tried, nope! It might be time for you to take a quick break because I am only about halfway there. I’m telling you, Knix is where it’s at for me!

As someone with a big chest and broad shoulders, bras have always been a challenge for me. I want something that gives lift and support, but I don’t want to add any unnecessary bulk or discomfort either. I’ve tried a few different Knix styles, and this is how I’ve felt about each.

Evolution Bra

The evolution bra was the first bra I ever tried from Knix. I purchased both the padded and unpadded versions during their warehouse sale. It was a total gamble as I don’t think you can make any returns when purchasing from that sale. When they arrived I thought I really liked the padded one, but the more I wore it, the more I hated it. It made my breasts look like such a strange shape and it just didn’t give me any support. The unpadded was equally as bad, and maybe even slightly worse. Simply a bad shape and not right for my body.

That being said, I think this would be a great option for people with a smaller chest. For reference, I am a D cup so I’m not super large chested, but not small either. Regardless, the evolution bra is not for me and I do not recommend it. Now that I compare the fit of it on the models online to the fit of other bras online, I see the difference and I was misguided in even purchasing it to begin with. Hindsight is 20/20 but if you’re a bigger chested person, maybe steer clear!

LuxeLift Pullover Bra

Enter the great Knix bra redemption… The LuxeLift Pullover Bra. This is truly the bra of my dreams!!! It feels like you’re wearing a sports bra, but gives you the most perfect shape. It fits under almost any style of shirt or a thick strapped tank. I am obsessed and wear this bra on repeat.

The size chart told me I was a XL, and while I have, love, and continue to wear the XL, I also have, love, and continue to wear a L. From now on I will most likely order L in this style of bra. The reason is I find the XL straps just slightly too long, and they don’t give me as much of a lift as the L. These are all things I wouldn’t have known had I not washed and worn them many times before figuring out what is the right fit for me. This is why the knix return policy is so amazing! (If you skipped it, I mentioned more about that above. Use those fine motor skills and scroll back up to see what I’m talking about!)

It is absolutely essential to wash and wear your Knix at minimum 2-3 times before deciding on how you feel about the fit. I find they always feel really snug at first and make me question if I’ve ordered the right size. Everyone’s body is different, so whatever magic they use in their fabric will help the pieces conform to your body, but ONLY after a few wears and washes. Don’t fret — many of their products can be worn and washed and still returned! (and I promise you, they’re not re-selling you washed and worn undies).

Wing Woman Contour Bra

When I first tried on the wing woman contour bra, I wasn’t into it. I thought, “Mmm this is nice, but it’s just not for me.” It had the unfortunate timing of arriving with my LuxeLift Pullover Bra, and they just couldn’t compare. I have a very casual lifestyle, and the LuxeLift suits my day-to-day wardrobe perfectly.

But then I tried the wing woman on with a few different outfits, I started to really come around to it. It looked amazing under a turtleneck and made me feel like a professional boss-ass woman! It really made me feel empowered and sophisticated. So I tried it under a few dresses and some blouses, and ended up falling for it. One of my favorite features of this bra is how it has little side panels sewn in to help hide that little fat pocket I have in my armpit. Glamorous, I know, but I am who I am!

If you wear a lot of v-neck styles, or a dressier wardrobe to your office every day, the wing woman might end up being your go-to bra.

Longevity Bra

The longevity bra is more like a standard sports bra style and should be considered activewear. It’s really comfortable but it’s another one that’s just not for me. I would say the biggest reason is again that I have a larger chest, and I prefer to have more support. My ribs are also very wide, so I find this bra rolls up a touch when I’m sitting down for long periods of time. It’s not nearly as bad as some other styles like this I’ve tried, and that probably wouldn’t happen if I sized up.

If you have a small chest, this one might work great for you. Especially for low-impact workouts, or if you like a comfortable bra for around the house. It’s also long enough that you could totally wear it as a top and not feel like it just strictly looks like a bra. Though this isn’t one of my favorite styles, I actually do wear it around the house quite a bit. I likely wouldn’t purchase it again, but I’m not going to get rid of it any time soon either.

Good to Go Seamless Tank

The Good to Go Seamless Tank is not actually considered a bra by Knix, rather it’s a tank with a built in shelf bra offering medium support. As soon as I saw this new release, I wanted to try it so bad! It definitely did not disappoint! Honestly, I am super impressed with the amount of support it does offer. I thought it would limit me to very low-impact workouts, but I feel confident that I could wear this through any workout and not be focused on how it feels the whole time. I also find the square-cut neckline to be super flattering.

While I don’t personally have the body confidence to wear this as a shirt in public, I exercise in my basement at home so I love wearing this with the hi-touch legging as a complete outfit. The fabric is a bit thicker than your typical sports bra, and it’s layered with the shelf tank underneath, so I think that’s why they don’t advertise it as a bra though you could wear it as one if you choose. I was so impressed with how this stays put when you’re doing complex movements. I would definitely order this as a set with leggings in a few different colors. And maybe one day, I’ll even leave the house in it!

Hi-Touch High Rise Legging

Completing the outfit is the hi-touch high rise legging. Since the turn of the century, leggings have seemingly taken over the world. I am certain I don’t know a single soul that doesn’t have a pair or twelve in their wardrobe. So when a “new” style hits the market, it can feel like they’re overdone and the best have already been made.

My initial response when I saw the hi-touch legging on the Knix site was underwhelming. But I was so deeply in love with the good to go seamless tank, I decided to give them a try. I am SO GLAD I did! When I first tried them on I was surprised at how fitted they were without digging into my sides. It felt as if I should have sized up, but they were so forgiving that it didn’t matter. After a couple of washes, just as the tag promised, they started to conform to my body. It’s seriously like magic!

The features I absolutely love about these are that they have a waistband that NEVER rolls or slides down. I never catch a glimpse of my underwear peeking above the top or worry that when I squat my bum will be showing. They seriously don’t budge, no matter the activity! I also felt kinda meh about the lines on the sides of them, but I love how they are tone on tone with the fabric, so they don’t stand out visually, but they offer so much targeted support. I think they make my butt look more lifted, and BONUS, they camouflage my cellulite!

Fabric wise, they’re everything you need in a legging. I would describe them as a cross between thick opaque pantyhose, and a swimsuit. It sounds horrendous, but it’s a perfect blend. Another amazing perk is that Knix swears the fabric won’t pill. Say whaaat?! That’s amazing news because all my lulus look like garbage after a year due to excessive pilling and dog hair getting woven through the knit. I have not owned my pants long enough to say for sure they won’t pill, but based on what I’ve seen so far, I believe them! I would definitely order this style again, and for sure recommend you try it out for your next legging purchase.

Modal Lounge Pant

The modal lounge pant were included in my Spring 2022 Jilly Box. If Jillian Harris endorses them, they must be good, right?!? Well, they are! They’re everything you want them to be! So soft, super stretchy, and just perfect for around the house but also versatile enough to leave the house in too. While they’re perfect for busting out cleaning moves at home, I also love pairing these with white sneakers, really any kind of jacket (jean jacket or shacket when you’re ultra casual, leather jacket when you want a bit more edge), and hitting the streets to run those errands baby! The stretch on these are unreal, so they’ll be forgiving regardless of what life throws your way.

Papaya High Rise Leggings

It might not be worth mentioning since these leggings haven’t been made available in quite some time, but in case they make a return… Here’s my take. I love the look of these leggings in terms of shimmer or sheen to them, it’s not too much. They look like real leather in a good kind of way. They’re comfortable through the leg with a great amount of stretch, and super comfortable. The only thing I don’t like about them is that they are too high rise. I’m 5’7″ so not super tall, but definitely not short either. I wish the band was 2-3″ shorter, and I passionately love high rise! Either way, I still wear these even after years of owning them, but know I would find them more comfortable if they weren’t so darn high.

My Wish List

Though I’ve tried many Knix pieces, there are still so many things I’m lusting after! The quality of everything I have, and the way they champion their products with their amazing return policy gives me so much confidence that my money won’t be wasted. My “would love to try” list includes:

Super Leakproof Dream Short

These look like the absolute perfect thing to wear to bed–especially in the summertime. I get so hot at night, even though we have AC (which has really helped) so wearing long pants to bed is a hard pass for me. This design is the cutest most practical sleepwear I’ve ever seen for when you’re on your period.

Modal Sleep Short Set

This is such a cute set to go to bed in, but also feel like you don’t have to rush to get dressed in the morning. If the mailman knocked on my door and I answered in this set, I wouldn’t be embarrassed. The cotton-modal underwear blend is so soft, and while it isn’t my favorite for underwear, I bet this sleep set is a dream to wear at night and during the day.

Catalyst Sports Bra

Typically this is not the kind of thing I would gravitate toward, and I don’t even know why because this seems like a close cousin the the LuxeLift bra that I love. But people rave about this bra! Everyone I’ve ever talked to who has it recommends it. So this one has made my wish list cut, and I will be adding it to my next order. The price tag is hefty IMO but I am willing to throw down for Knix. They have not done me wrong, and I’ve sent them plenty of my cash already.

Knixy Lace Essential Boyshort

This lace style seems to come and go from the Knix lineup, but the current limited edition colors are right up my alley! I would opt to get this style in the essential underwear, as opposed to the leakproof because periods and lace just don’t work well together in my mind. But the leakproof option is available if that’s your jam!

Good to Go Fleece Crewneck

If I’m being honest, the cut of this sweater would not be complimentary to my body shape. And while I think it’s awesome that we celebrate all bodies (Knix especially does an amazing job of this) I also love to wear things that draw attention to things I really love about my body. However, I still feel so drawn to this crewneck. I can’t say I’ll purchase it due to the aforementioned reason, but wow I just think it’s so cute and cozy looking. Perfect for a casual lifestyle like mine, and finished off perfectly with the good to go joggers. Spring in northern Alberta is more like winter everywhere else in the world, so fleece-lined jogger fits sound very appealing this time of year.

Waffle Set

Ok, this waffle knit set just dropped last week, but damn. They’ve done it again. How freaking cute is this set?! The top could definitely be worn out of the house, but wowwww this is so nice for cozy days at home. I wouldn’t even know what color to choose because they’re all so good! Maybe the blue? What’s your fave?

The Knix Ethos

Obviously, I’m wild for all things Knix. I am so passionate about getting value out of things regardless of what they cost. Though the price tag for Knix can feel a little high initially, the value is so high! I really don’t think you’ll regret any purchases. Especially if you read the many reviews on each product, are mindful of the return policy, and really take advantage of their willingness to help you find the right fit.

Beyond products, Knix is so much more than a company trying to score your money. They do so much good in the world. They:

  • use a wide variety of models so everyone feels represented
  • empower women by setting an amazing example of what we are capable of
  • reduce landfill waste with excellent period products
  • not using you to make a quick buck, they’re committed to providing you with a great experience and product
  • have a line dedicated to teens so they can navigate life with a period, without feeling like they’re wearing their mom’s old lady undies
  • give children the opportunity to see models that aren’t altered to meet an unrealistic beauty standard
  • offer awesome rewards and incentives each time your purchase

You really can’t go wrong with supporting Knix. You’re getting an amazing product, and they’re doing great things for the world. Their latest campaign, Big Strong Woman, is just one example of what they stand for and how they are raising up all women. Don’t forget to use code THEAUTISMEDIT_10 to save 10% off your next purchase (and support me in the process, thank you so much!). And please leave me a note below or DM me on Instagram so we can chat about what you’re obsessed with and what you’re returning! I would love to continue this conversation with you!

— Kathy




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