Skip to content

Your Bag

Your cart is empty

But you're full of potential..

Rewards Members Earn 0 Points
Bundle Deal

Light Leakproof No-Show Boyshort 3-Pack

$60.00 CAD

$75.00

Save $15
Checkmark

3-pack underwear

Checkmark

Absorbs about 1 regular tampon

Checkmark

Invisible under clothes

Checkmark

Perfect for daily wear

Checkmark

Machine washable

| Dahlia/Starling/Twilight Navy
| Dahlia/Starling/Twilight Navy
| Dahlia/Starling/Twilight Navy
| Dahlia/Starling/Twilight Navy
| Dahlia/Starling/Twilight Navy
| Dahlia/Starling/Twilight Navy

Color: Dahlia/Starling/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.

First Pair Risk Free for 30 Days

Leakproof Underwear, Risk Free

Returns & Exchanges

Leakproof Underwear, Risk Free
Trying leakproof underwear for the first time? Your first pair is completely risk free for 30 days. Wear them, wash them, and see how they work for your body. If they’re not right for you, we’ll refund your first pair. Prefer a different size or style? We also offer free exchanges.

How it works:

  • Risk free applies to leakproof underwear on your first order
  • Refund covers the item price (original shipping excluded)
  • Just email info@knix.com and we’ll take care of you

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

Rewards Members Earn 60 Points

Product Description

So thin, you’ll forget you’re wearing anything. This style has full bum and hip coverage. Our original leakproof technology offers a barely-there feel while absorbing about 1 regular tampon or pantyliner worth of liquid. Patented bonded edges help prevent against side leaks. These underwear feature our signature buttery soft fabric. No show construction is designed to be invisible under clothes, including workout leggings.

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

| Dahlia/Starling/Twilight Navy
| Dahlia/Starling/Twilight Navy
| Dahlia/Starling/Twilight Navy
| Dahlia/Starling/Twilight Navy
| Dahlia/Starling/Twilight Navy
| Dahlia/Starling/Twilight Navy

How to Choose?

Essential

  • Days you don’t need leak protection. Everyday freshness and moisture wicking.
  • tsp
    0 tsp

Heavy

  • Extra peace of mind. For the first days of your cycle, light bladder leaks, or a full night's sleep without a leak.
  • 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

  • Daily freshness. For sweat, discharge, period spotting, or backup protection.
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

  • For mid-cycle flow, surprise cough or sneeze leaks, or a really sweaty spin class.
  • 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

  • Ultimate peace of mind. For the heaviest period days, light bladder leaks, unexpected postpartum flow, or overnight protection.
  • 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 7,304 reviews
Total 5 star reviews: 5.7k Total 4 star reviews: 932 Total 3 star reviews: 336 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 4.7 on a scale of 1 to 5
7,304 reviews
  • Rated 5 out of 5 stars
    1 hour ago
    Comfort and carefree

    Love these boyshorts so much, never going back to liners!

    Tessa J.
    Verified Buyer
  • Rated 5 out of 5 stars
    6 days ago
    Love Love Love

    Have fallen in love with the boyshort. They are so comfortable it’s like you’re not wearing any underwear at all.

    Debbie G.
    Verified Buyer
  • Rated 5 out of 5 stars
    6 days ago
    Comfy and protectively

    The light leak proof boyshorts are great. They're very comfortable and like the colors.

    Candice S.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    Terrific find.

    These boy shorts are just what I was looking for. After trying several different brands, I’ve finally found the perfect ‘period panty’ fit for me. These boy shorts are soft, comfortable & discreet. No ride-ups, no wedgies, no leaks.

    Amita S.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    Boyshort

    Nice feel. Effective for light bladder leak

    Bonnie P.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    5 Stars

    I live these. Great fabric and fit.

    Brandy
  • Rated 5 out of 5 stars
    2 weeks ago
    Boyshorts

    Perfect choice to wear under horseback riding breeches

    Lisa M.
    Verified Buyer
  • Rated 5 out of 5 stars
    2 weeks ago
    Will be buying more

    I use this as backup on heavy flow days when wearing a tampon and it always does the job. I am a size small in regular underwear and the size small for these fits perfect. It’s great having peace of mind in heavy days!

    Katherine S.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Accurate sizing and comfortable

    I have tried several different kinds of leek proof panties, and I have found that these have been the best so far.

    Alisa M.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 weeks ago
    Boy short

    I love these! So comfortable.

    Sharon G.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 weeks ago
    5 Stars

    Comfortable fit

    Esther
  • Rated 5 out of 5 stars
    1 month ago
    Light Leakproof no show boy short.

    Some gaping around back side below buttocks.

    Lesley D.
    Verified Buyer