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Leakproof Logo Modal Rib Boxer Brief

$35.00 CAD

Buy 3+ Save 15%, Buy 5+ Save 20%

Absorbs about 1 regular tampon

Ultra-soft ribbed modal

Perfect for daily wear

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*

Build Your 3-Pack

Leakproof Logo Modal Rib Boxer Brief

Color: Grey

Size:

Size:

Leakproof Logo Modal Rib Boxer Brief

Color: Grey

Size:

Size:

Leakproof Logo Modal Rib Boxer Brief

Color: Grey

Size:

Size:

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

New to leakproof? Your first pair is risk free for 30 days. Wear them, wash them, and see how they work for your body. Not right for you? We'll refund the item price (original shipping excluded). Prefer a different size or style? We also offer free exchanges. Just email info@knix.com and we'll take care of you.

Purchased leakproof before? Within 30 days of delivery you can exchange for another size, style, or store credit. We're unable to provide refunds on underwear. If you ordered multiple pairs, please open, wash, and wear one pair only before initiating an exchange.

Still have questions? View our full policy here.

Rewards Members Earn 35 Points

Product Description

Easy-to-wear underwear meets a new, must-have look. Soft modal spandex in a boxer-style silhouette with signature Knix logo waistband—in other words— these are your next favorite pair. Featuring our built-in leakproof technology so that you can use them as backup period protection or on their own on lighter days.

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.

Zoom

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

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

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

4.1
Rated 4.1 out of 5 stars
Based on 158 reviews
Total 5 star reviews: 100 Total 4 star reviews: 20 Total 3 star reviews: 13 Total 2 star reviews: 6 Total 1 star reviews: 19
75%would recommend this product
ComfortRated 4.0 on a scale of 1 to 5
EffectivenessRated 4.1 on a scale of 1 to 5
FitRated 0.1 on a scale of minus 2 to 2
158 reviews
  • Rated 5 out of 5 stars
    24 seconds ago
    Underwear

    My austim daughter loves thus kind of underwear she won’t use any other one thank you 😊

    Lisa c.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 days ago
    My Favorite

    This style is my go-to for spotting and light flow days. They are even breathable enough to wear as regular undies, which I do frequently because they're so comfy!

    Emily B.
    Verified Buyer
  • Rated 5 out of 5 stars
    1 month ago
    5 Stars

    like how soft it feels😊

    Vienna
  • Rated 5 out of 5 stars
    2 months 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
    2 months 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
    2 months 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
    3 months 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 months ago
    Comfort & Joy

    My granddaughter absolutely loved these. So soft and comfortable.

    Karen B.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 months 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 months ago
    AMAZING

    I absolutely love everything about them !

    Cora Y.
    Verified Buyer
  • Rated 5 out of 5 stars
    3 months ago
    Very comfortable!!!

    These briefs are so comfortable I intend to buy more.

    Susan D.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 months ago
    5 Stars

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

    Marie-Noël

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