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Leakproof Logo Modal Rib Boxer Brief

$35.00 CAD

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Absorbs about 1 regular tampon

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Ultra-soft ribbed modal

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Perfect for daily wear

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Machine washable

Esther has 38

Esther has 38" hips and wears a Knix size M

  | Grey
Esther has 38

Esther has 38" hips and wears a Knix size M

Esther has 38

Esther has 38" hips and wears a Knix size M

| General
| General
| General

Esther has 38" hips and wears a Knix size M

Color: Grey

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

Sale & Last Call

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

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.

Rewards Members Earn 35 Points

Comfort-First Fit

This boxer style sits at the natural waistline with full bum coverage.

Worry-Free Protection

Our original leakproof technology offers a barely there feel while 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.

Easy to Wash

Machine washable just like regular underwear.

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Esther has 38
  | Grey
Esther has 38
Esther has 38
| General
| General
| General

How to Choose?

Essential

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

Heavy

Drop
Drop
Drop
Drop
Drop
  • 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

Drop
Drop
Drop
Drop
Drop
  • 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

Drop
Drop
Drop
Drop
Drop
  • 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

Drop
Drop
Drop
Drop
Drop
  • 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.

4.2
Rated 4.2 out of 5 stars
Based on 149 reviews
Total 5 star reviews: 97 Total 4 star reviews: 18 Total 3 star reviews: 12 Total 2 star reviews: 5 Total 1 star reviews: 17
77%would recommend this product
ComfortRated 4.2 on a scale of 1 to 5
EffectivenessRated 4.2 on a scale of 1 to 5
FitRated 0.1 on a scale of minus 2 to 2
Ease of UseRated 4.3 on a scale of 1 to 5
149 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    Very comfortable for warm weather!

    Fit is great, absorption could be improved at the edges.

    Thank you for one of the best products out there

    Deb C.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 week ago
    5 Stars

    Love these shorts, they’re so soft even after washing a bunch of times! Super comfy, I’d buy 5 pairs if I could!

    Lauren
  • Rated 5 out of 5 stars
    1 week ago
    5 Stars

    Love the fit! Super comfy and the leakproof goes all the way uo the back amazing fo piece of mind during that time of the month! Would recommend

    Samantha
  • Rated 5 out of 5 stars
    2 weeks ago
    Best ever!

    Quite possibly the most comfortable underwear I have ever worn! They get a little loose throughout the day, but when washed, they shrink back to size.

    Martha M.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    Comfort & Joy

    My granddaughter absolutely loved these. So soft and comfortable.

    Karen B.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    These beat my Woxers

    Far superior boxers, I got a great deal too

    Ruth L.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 weeks ago
    AMAZING

    I absolutely love everything about them !

    Cora Y.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    Very comfortable!!!

    These briefs are so comfortable I intend to buy more.

    Susan D.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    5 Stars

    Love these, have a bunch. Wish there was more colours.

    Marie-Noël
  • Rated 5 out of 5 stars
    1 month ago
    SOOOO COMFY

    Light/ end of flow days.

    Love walking around in these in just a hoodie at home or sleeping in them. They make my bum look great!

    Jes K.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    5 Stars

    A new staple for my period! So comfy to wear and sleep in

    Brenna
  • Rated 5 out of 5 stars
    1 month ago
    Super comfy!

    Super comfortable

    Susan C. F.
    Verified Buyer