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| Cheetah Print
Leakproof UltraThin No-Show Bikini
$27.00 CAD

Color:

Color: Cheetah Print Limited Edition

Size:

Size:

Size and Fit Guide

Spend $200+, get extra 10% OFF
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Home / Up to 25% off Boyshort Underwear / Light Leakproof No-Show Boyshort 3-Pack
Sale

Light Leakproof No-Show Boyshort 3-Pack

$60.00 CAD

$75.00

Spend $200+, get extra 10% OFF
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3-pack underwear

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Absorbs about 1 regular tampon

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Invisible under clothes

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Perfect for daily wear

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Machine washable

| Black/Burnished Gold/Twilight Navy
| Black/Burnished Gold/Twilight Navy
| Black/Burnished Gold/Twilight Navy

Absorbency: Light
Drop
Drop
Drop
Drop
Drop

Color: Black/Burnished Gold/Twilight Navy Limited Edition

Size:

True to Size

•

Size:

Size and Fit Guide

Leakproof Underwear is Sales Tax Free in Canada*
Free Shipping on orders $100+

Shipping

Shipping
Processing Timelines

Please allow 1-2 business days for our warehouse team to pack and ship your order. During peak periods such as sales, holidays and product launches, please allow up to 4 business days for us to process your order.

Delivery Time

For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines vary depending on location and do not include processing times.

Shipping Charges

Orders over $100* CAD = Free Shipping (2-6 business days)
Orders under $100* CAD = $12 CAD Shipping (1-3 business days)
Orders delivering to NWT, Nunavut and Yukon are subject to $20 delivery fee.
*After discounts, before shipping and taxes.
Easy Exchanges within 30 Days

Returns

Returns
Free Returns

Knix covers the return shipping fees for exchanges and refunds initiated through our Return & Exchange Portal. Exchange orders initiated through our Return & Exchange portal are also eligible for free shipping within the USA and Canada. Please note, the shipping fees on your original order are non-refundable.

Return Policy

Return policy varies by product, please check if your item is refund or exchange eligible by viewing our full policy here.

Sale & Last Call

Items discounted below 30% are eligible for size exchange or store credit. Items discounted 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.
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Light Leakproof No-Show Boyshort

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Comfort-First Fit

Boyshort silhouette with a mid-rise fit and extra hip and bum coverage.

Worry-Free Protection

Our original leakproof technology provides a barely noticeable feel. Patented bonded edges help prevent side leaks.

Light Absorbency

Absorbs 1 regular tampon worth of liquid—perfect for light flow days, sweat and discharge, and backup protection for heavy flow days.

No-Show Style

Made from our signature buttery soft fabric with a wide, comfortable waistband. Wear it on its own or under your favorite pajamas.

Easy to Wash

Machine washable just like regular underwear.

Zoom

| Black/Burnished Gold/Twilight Navy
| Black/Burnished Gold/Twilight Navy
| Black/Burnished Gold/Twilight Navy

How to Choose?

Essential

Drop
Drop
Drop
Drop
Drop
  • • Everyday Wear
  • • No leakproof protection
  • tsp
    0 tsp

Heavy

Drop
Drop
Drop
Drop
Drop
  • • heavy period days
  • • overnight protection
  • • light bladder leaks
  • tsp
    6-11 tsp
  • pad
    about 1.5-3 regular pads
  • tampon
    about 3-6 super tampons
  • cup
    about 1-2 menstrual cups

Light

Drop
Drop
Drop
Drop
Drop
  • • light period days
  • • sweat
  • • sweat and discharge
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

Drop
Drop
Drop
Drop
Drop
  • • moderate period days
  • • light bladder leaks
  • • sweat
  • tsp
    about 3-6 tsp
  • pad
    about 1-1.5 regular pads
  • tampon
    about 2-3 super tampons
  • cup
    about 0.5-1 menstrual cups

Ultra

Drop
Drop
Drop
Drop
Drop
  • • extra heavy period days
  • • overnight protection
  • • light bladder leaks
  • tsp
    13-17 tsp
  • pad
    3.5-4.5 regular pads
  • tampon
    7-9 super tampons
  • cup
    2-3 menstrual cups
PATENTED LEAKPROOF TECHNOLOGY

Built-in protection that feels like nothing at all

Our original Fresh Fix Technology® features a built-in absorbent liner absorbing about 1 regular tampon worth of liquid so you feel fresh and in-control.

Soft Top Layer

Soft Top Layer

Gently wicks away moisture while keeping you feeling fresh and odor-free.

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Leakproof UltraThin No-Show Bikini

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4.6
Rated 4.6 out of 5 stars
Based on 7,237 reviews
Total 5 star reviews: 5.6k Total 4 star reviews: 926 Total 3 star reviews: 334 Total 2 star reviews: 170 Total 1 star reviews: 168
93%would recommend these products
ComfortRated 4.7 on a scale of 1 to 5
EffectivenessRated 4.6 on a scale of 1 to 5
FitRated 0.0 on a scale of minus 2 to 2
Ease of UseRated 4.6 on a scale of 1 to 5
Write a Review (Opens in a new window)
7,237 reviews
  • Rated 5 out of 5 stars
    Yesterday
    Very compfy

    Very comfortable. The fabric is soft and thin. No discomfort associated with the leekprook padding. The colors are great.

    Marie H.
    Verified Buyer
    Was this helpful?
  • Rated 1 out of 5 stars
    2 days ago
    Boff

    Un peu trop geand car elle tombe tout seule et la protection anti fuite n’est vrm pas assez grande, devrait avoir plus d’amplitude devant et derrière

    MAXIME R.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 days ago
    Great underwear

    Soft material, great coverage

    Debbie T.
    Verified Buyer
    Was this helpful?
  • Rated 2 out of 5 stars
    4 days ago
    Used To Be Favs, But QA Issue Make These A No-Go

    While I understand underwear won't last a lifetime, I own almost 60 pair of Knix boyshort undies (along with the Dream Shorts) I've accumulated over the last 3 years — in addition to dozens of other brand underwear I own...which is well more than enough inventory to only wear each pair maybe 4-5 times a year.

    Of the 57 Knix no-show boyshort I own, 24 pair are now falling apart and are no longer wearable. The issue is always inside the right leg (though 2 of them are on both sides), where the elastic seam seal tape is coming unglued and hanging off. I follow all care instructions to the T - wash cold, mild detergent, no fabric softener, and lay them flat to dry (my husband jokes our laundry room looks like a Knix store with dozens of undies hanging out to dry).

    I reached out to Knix and sent pictures as well, but was told my underwear "fall outside the recommended lifespan of our products - we typically suggest replacing your Knix items every 24 months to ensure optimal performance." -- this was even on undies I purchased within the last year (they asked for all of the lot numbers printed inside the underwear, but even the newest pairs I've bought, all had the same code).

    So...if you're only wearing a pair 4-5 times a year, that means you're only getting to wear them 8-10 times before they fall apart -- which to me, is unacceptable, especially for the price you pay. I am all about paying for quality, but it's evident there is a QA failure with either the elastic seam…

    E C.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    6 days ago
    Love them

    True to fit

    Cindy L.
    Verified Buyer
    Was this helpful?
  • Rated 2 out of 5 stars
    2 weeks ago
    Disappointed - they changed the cut and coverage

    Bought these initially in 2023 and they were amazing. Just repurchased a second set and they totally changed them (yet kept all the old reviews to bump up their rating). The new ones have way less rear coverage so it feels like a “cheeky”, which I can’t stand. The leakproof part also has way less coverage. It seems like none of their products will cover the full rear anymore except for shorts. Also the stretch recovery is not as good as it used to be so it seems to sag by the end of the day. Will sadly be looking for a new brand.

    Audrey
    Was this helpful?
  • Rated 4 out of 5 stars
    2 weeks ago
    Boyshort Review

    I originally ordered the bikini but didn't like the fit notso returned them and replaced them with the boyshort. It is a much better fit for me and I really like the fabric.

    Janine S.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    Leakproof boy shorts

    Great fit, nice and absorbent.

    Susannah S.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Love these!

    I finally decided to give knix undies a try and I love these. I am currently pregnant, so I got the light absorbency just to avoid having to wear a panty liner every single day (yay pregnancy!) and I am very happy. I felt so much more comfortable, any leaks or discharge I didn't notice, they didn't feel wet. They also stay in place nicely, no riding up, and no panty lines! Win win. I'll definitely purchase more in the future. I purchased size M after checking out their size chart in store, they felt a bit snug when I first put them on but after wearing them for a bit I was super comfortable, they stretched the perfect amount.

    Sara
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 weeks ago
    Comfortable fit

    I don’t know I’m wearing leakproof underwear. I take comfort in knowing that I’m protected.

    Patricia M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 weeks ago
    The best underwear!

    I have completely replaced my underwear with Knix. After having 2 kids, the bladder leakage issues can lead to embarrassing moments. These underwear have saved me so many times. I love the coverage and fit of the boy shorts.

    Casey C.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 weeks ago
    Comfy garmets

    Love these ! Barley feel like your wearing them and they wash well.

    JOELLE M.
    Verified Buyer
    Was this helpful?