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Light Leakproof No-Show Boyshort

Our leakproof, no-show boyshort period underwear.
$25.00 CAD

Mix & Match: 3+ for $20 each
Chinthiya has 42

Chinthiya has 42" hips and wears a Knix size L

| Sola
Chloe has 47

Chloe has 47" hips and wears a size XL

Chinthiya has 42

Chinthiya has 42" hips and wears a Knix size L

 | General
 | General
Chinthiya has 42

Chinthiya has 42" hips and wears a Knix size L

Chinthiya has 42" hips and wears a Knix size L

Color: Sola

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.

Rewards Members Earn 25 Points

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

Chinthiya has 42
| Sola
Chloe has 47
Chinthiya has 42
 | General
 | General
Chinthiya has 42

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
    about 8-14 tsp
  • pad
    about 1.5-3 regular pads
  • tampon
    about 4-7 super tampons
  • cup
    about 1.5-3 menstrual cups

Light

Drop
Drop
Drop
Drop
Drop
  • light period days
  • sweat
  • 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 4-8 tsp
  • pad
    about 1-1.5 regular pads
  • tampon
    about 2-4 super tampons
  • cup
    about 0.5-3 menstrual cups

Ultra

Drop
Drop
Drop
Drop
Drop
  • extra heavy period days
  • overnight protection
  • light bladder leaks
  • tsp
    about 15-20 tsp
  • pad
    about 1.5-2.5 super pads
  • tampon
    about 7-11 super tampons
  • cup
    about 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.

4.6
Rated 4.6 out of 5 stars
Based on 7,193 reviews
Total 5 star reviews: 5.6k Total 4 star reviews: 925 Total 3 star reviews: 329 Total 2 star reviews: 169 Total 1 star reviews: 166
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 4.7 on a scale of 1 to 5
7,193 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    pleased

    love these super comfy and work great

    Jessica S.
    Verified Buyer
  • Rated 5 out of 5 stars
    Yesterday
    5 Stars

    Love material

    Andrew
  • Rated 5 out of 5 stars
    3 days ago
    Comfortable Fit

    I ordered 2 pairs of the Navy Blue undies. They fit perfectly and don’t add another layer at waist level. They have enough stretch to offer some belly control.

    Wanda B.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 days ago
    No show Boyshort

    Appreciate the comfort as well as the protection

    Karen S.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    Great!

    I have a very light flow so these are great, as often a tampon is not needed but I hate using liners - it just feels so wasteful! These have been a great solution

    Jenesa T.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    Perfect leaky protection

    My use-case is for being a leaky lady 😂 specifically discharge. This is my go round with any of these brands or products and it’s been good so far. I was sick of panty liners (and hate that phrase) and wanted to try something else and so far all the items I purchased (cotton bikini, cotton high rise, no show thong all size L) have worked for what I’ve wanted.

    I used the measurements provided and they’ve all fit well, stayed where they’re supposed too, and not rolled or bunched.

    Emily L.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    Barely There

    Silky, light , comfortable through all kinds of movement.

    Amy L.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Covers nicely

    Love the boyshort it covers the bum bum very well. Well structured, lightweight and feels soft on the skin.

    Phyllis W.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    5 Stars

    Great fit

    Monica
  • Rated 4 out of 5 stars
    3 weeks ago
    4 Stars

    Nice fit. Fabric is stretchy and light

    Jessica
  • Rated 5 out of 5 stars
    1 month ago
    Leakproof Boyshort

    Fit and comfortable, I will definitely wear them for everyday use.

    Helen G.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Absolutely in love!

    I absolutely love the fit and comfort. I have exclusively wore Knox for 3 years and won’t wear anything else!

    Rebecca H.
    Verified Buyer