Worth It? | Seamless Panties by Knixwear

Hi Everyone!

I first heard of Knixwear a few years ago and in 2016 when my sister was getting married, I wanted to get a seamless underwear so I wouldn’t be showing any panty lines! Both of my dresses were made of chiffon and lined, but when I wore regular underwear underneath, you could definitely see the seams.

Trying to figure out which underwear to buy? Let me help you! I’ve gone through their website and gathered some information to differentiate all the different types. I was a bit overwhelmed myself when trying to decide which ones to choose from.

This is going to be a long post, if you want to read about my opinions, it’s in the first part, if you want to read about the different categories and styles, then scroll down! (This is not a sponsored post, i just thought I’d write an informative post about a brand I love).


So, are these seamless underwear worth it?

Absolutely! I wouldn’t have written this post if they weren’t! They are especially great for weddings (whether you’re the bride or part of the bridal party!)

I’ve bought several pairs over the past few years and I have several different types: Everyday Leakproof Boy Shorts, Athletic Cheeky and Athletic Bikini. I think the Everyday Leakproof Boy Shorts and the Athletic Bikini that I have are a bit older and they have since changed the gusset. Now they have a quick dry gusset, but the ones I have are regular 100% cotton gussets.

I’m not going to lie, Knixwear underwear is expensive, but they are super comfy and will last you a long time (especially if you only wear them if you have to). I don’t see my self wearing my Everyday Boy Shorts underneath a pair of jeans. I’ll be saving it for whenever I have a special event or something. The Athletic ones are a different story- I’ve bought them in bulk and they didn’t cost me $25. I’ve only bought the Athletic underwear on sale, I bought the Everyday ones for my sister’s wedding and it’s not like I could anticipate when they’d go on sale. Back in 2016, they didn’t even have knixwear.ca, so I could only buy them from Hudson’s Bay. I got two Athletic Bikinis from Hudson’s Bay (before they stopped selling them). They were on sale for $9 or something.

There’s also a Knixteen which sells period underwear for teens (similar to the leakproof underwear for adults). The underwear is cheaper, but you’ll have to figure out your sizing because they’re sized for teens obviously. Some people said they just ordered a size up from the usual, but others said the fit of the underwear didn’t work with their bodies.

I also have a few pairs of No Show Cheeky Panties from Hollister’s Gilly Hicks line. They’re on sale right now (at a 1/3 of the price of a Knixwear underwear) and they are also super comfortable. In the past few years, a lot of other brands have come up with their own seamless underwear, but it seems like they’re all thicker and similar to the Athletic line. I haven’t seen a lot that are seamless and thinner like the Everyday line. Also, if you want an underwear that wicks moisture, is anti-odor and quick drying, then Knixwear is the brand for you. Obviously with all these additional things, it makes sense why it’s twice as much as some other brands.

Athletic underwear- Cheeky in the purple, Bikini in beige (Left pic- Back, Right pic- Front). Cheeky is a lower rise underwear than the bikini.

All of the fits are comfortable, Like you’re not wearing anything. I think I prefer the boy shorts or bikini. I like the cheeky underwear too, but because the bum coverage isn’t as good, it does that thing like when you wear bandeaus. Let me explain…when your bandeau is tight (because you don’t want it to slip down) and you get the dreaded ‘quad boob’ look aka your bra cuts into your boobs and then it looks like you have four boobs. It’s the same with the cheeky underwear if you’re standing a certain way- you get a ‘quad bum.’ They have it as a ‘quad ass’ on Urban Dictionary, but I’m trying to make it sound nicer. Since the underwear is a bit tighter so that it can create a seamless look against your body, and it’s cheeky, it gives you the illusion of having four butt cheeks. It’s fine if you’re standing with your bum sticking out (no one stands like that normally though), but if you lean to one side, then you get that effect. For this reason, I think the boy short, bikini, high rise or thong is the best bet.

Which Do I Choose? Athletic or Everyday?

The following are my opinions on which underwear you should get depending on what you plan to wear them for, of course you don’t have to take my advice, but these are my suggestions:


Everyday (left), Athletic (right)- You can tell that the Everyday underwear are more sheer and pinky and you can see my hand under the Everyday, but not the Athletic

  • Choose Everyday line if you want a seamless underwear to wear under a dress, skirt or pair of pants.
  • Choose Athletic if you plan to exercise in them.

Whether you choose regular or leakproof is up to you. I bought an Everyday Leakproof Boy Short because it was on sale at Hudson’s Bay. If I had the choice, I think I would’ve chosen regular because there is a built-in panty liner which makes the gusset a bit  thicker than the non-leakproof underwear and the gusset is also wider than my regular underwear from La Senza.

Aren’t the tubes cute?

All underwear comes in black and beige (nude) in sizes S-XXL (I wear a size S- I am an S at La Senza, Aerie, VS). The athletic bikini, thong and boyshorts also come in white. The athletic line of underwear (not including leakproof) also have other colours that are limited edition: marble, grey heather and midnight garden.

When I built a set to get 5 pairs on Black Friday, I was given a random selection of colours. I assume that they bring out different colours as limited edition. I was sent the following 5 colours: Black, Grey Heather, Reptile, Bourdeaux and Gravity.

The care instructions for all of the underwear: machine wash cold with mild detergent, do not bleach, lay flat to dry.

They all have a Quick Dry Gusset- Dries 2-3 times faster than regular cotton and carbon cotton fights odor.

Knixwear has different categories: Athletic & Everyday and Regular & Leakproof. Then each offer different styles: Bikini and Boyshort are available for all and then there are Thong, Cheeky and High Rise. Check out my table below to see which styles are available in the different categories:

Bikini Boyshort Thong Cheeky High Rise
Athletic x x x x
Everyday Performance x x x x
Athletic Leakproof x x x
Everyday Leakproof x x x

Athletic & Athletic Leakproof will relax a bit more than the Everyday line because of the stretch tech which means that the Everyday & Everyday Leakproof underwear hugs more snugly than the Athletic line.

They also have a long underwear called the Thigh Saver Short. It looks similar to Spanx, but it’s made from a thinner material. They use the same material as the Everyday Performance Underwear. It’s worn to wick away sweat, create a seamless look and eliminate chafing. These are not shaping underwear.

Bikini- A classic mid rise silhouette with medium coverage through the hip and bum.

Boyshort- Extra coverage through the hip and bum, and sit slightly higher than our bikini silhouette.

Cheeky- The cheeky is our lowest rise with light coverage through the bum.

Thong- Our thong provides a mid rise silhouette with minimal coverage.

High Rise- Our high rise sit at the natural waist and provide medium coverage through the bum.

Thigh Saver- The thigh saver sits just below the natural waist and provide coverage down to the mid thigh.

The Selection of Underwear


Our moisture-wicking performance underwear maximize movement and comfort during your most intense workouts. And seamless technology means no panty lines will ever distract you from kicking butt.

Body: 77% nylon, 23% LYCRA®

Gusset liner: 86% cotton, 10% spandex, 4% carbon

Athletic Leakproof

High-performance underwear with an ultra thin, built-in panty liner. Absorbs up to 3 tsp of moisture (approx. 2 tampons), great for light bladder leaks and as back-up period protection.

Body: 77% nylon, 23% LYCRA®

Gusset Liner: 86% cotton, 10% spandex, 4% carbon

Gusset: Fresh Fix Technology®

Everyday Performance

Our desert-island underwear. Light-as-air fabric gives you that naked-but-better feel, while seamless, bonded construction and soft velvet flocking hug your curves and vanish under clothes.

Body- 65% nylon, 35% spandex

Gusset Liner- 86% cotton, 10% spandex, 4% carbon

Everyday Leakproof

Essential, go-anywhere underwear with an ultra thin, built-in panty liner. Absorbs up to 3 tsp of moisture (approx. 2 tampons), great for light bladder leaks and as back-up period protection.

Body: 65% nylon, 35% Spandex

Gusset Liner: 86% cotton, 10% spandex, 4% carbon

Gusset: Fresh Fix Technology®

Thigh Saver Short– $38 USD

Our seamless long leg underwear wick away sweat for silky smooth comfort that eliminates chafing. We love these invisible, forget-they’re-there shorts under our favorite summer dresses.

Body: 65% nylon, 35% Spandex

Gusset: 100% cotton

Knixwear’s Other Products

They sell bras, a tank top and tee, socks, sweat bands and loungewear. I got the socks as part of a set (they’re very comfy, I can’t comment on whether they are good at wicking moisture because I haven’t tried them while working out) and bought my mom the 8-in-1 Evolution Bra (which she said is very comfortable). Here are the other items they sell at Knixwear (pictures are taken from their website):


  • 8-in-1 Evolution Bra ($55 USD)- reversible, detachable straps (sizes 1-8)
    • Beige/Grey Heather
    • Black/Beige
    • Midnight Garden/Black (limited edition)
    • Grey Heather/Black (limited edition)
  • Padded 8-in-1 Evolution Bra ($55 USD)- reversible, detachable straps (sizes 1-8)
    • Black/Beige
    • Grey Heather/Black (limited edition)
  • Longevity Bra ($45 USD)- medium impact sports bra (sizes S-XL)
    • Beige
    • Black/Black
    • Grey Heather/Black
  • V-Neck Evolution Bra ($55 USD)- thicker straps, v-neck (sizes 1-8)
  • Evolution Tank ($65 USD)
    • Beige
    • Black
    • Willow (limited edition)
    • Granite (limited edition)
  • Don’t Sweat It T-Shirt ($48 USD)- sweat-blocking, seamless tee (sizes S-XXXL)
    • Beige
    • Black
  • Sport Sock ($10 USD)
    • Black/Royal Blue
    • Dark Grey/White
    • Grey/Peach
  • Athletic High Performance Sweat Band ($12.50 USD)
    • Black
    • Marine (limited edition)
    • Cayenne (limited edition)

They also just came out with Loungewear (only one colour available for each of them at  the moment):

  • Sleep Set ($69 USD)- button-down short-sleeve shirt and shorts
    • available in a blue-gray colour
  • Romper ($49 USD)- long-sleeve/shorts
    • available in dark gray
  • Lounge Pants ($59 USD)- jogger pants
    • available in dark gray

Do you wear Knixwear? What seamless undies do you buy?



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