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Home / Boxer Underwear / Super Leakproof® Dream Boxer™
#1 Overnight Solution

Super Leakproof® Dream Boxer™

$48.00 CAD

2 for $80, Save $16
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Absorbs about 7-9 super tampons

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Built in leakproof underwear

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Optimal overnight protection

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Machine washable

Binta wears KNIX L | Blue Stripe

Binta wears KNIX L

| Blue Stripe
Binta wears KNIX L | Blue Stripe

Binta wears KNIX L

| General
| Blue Stripe
| Blue Stripe
| Blue Stripe
| Blue Stripe

Binta wears KNIX L

Absorbency: Heavy

Color: Blue Stripe

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 48 Points

Product Description

The comfort of a boxer with the power of a pad. The Super Leakproof Dream Boxer offers a relaxed, non-restrictive fit that makes it the perfect choice for lounging and sleeping. Whether you’re managing a heavy period, postpartum recovery, or light bladder leaks, the high-rise waistband and soft-touch fabric provide a supportive feel without digging in. Designed to replace bulky pads and liners, these absorbent boxer briefs offer a sustainable, eco-friendly solution for your monthly cycle. Available in inclusive sizes XS to 4XL.

Comfort-First Fit

Combining a loose-fitting boxer with an internal brief for discreet Leakproof protection. Designed to be worn as both loungewear and overnight protection.

Worry-Free Protection

Designed with a built-in leakproof liner that fits snug to the body, it helps lock in leaks from every angle, even as you toss and turn.

Heavy Absorbency

Absorbs 7-9 super tampons worth of liquid—great for heavy flow days, overnight protection, and light bladder leaks.

Easy to Wash

Machine washable just like regular underwear.

Zoom

Binta wears KNIX L | Blue Stripe
| Blue Stripe
Binta wears KNIX L | Blue Stripe
| General
| Blue Stripe
| Blue Stripe
| Blue Stripe
| Blue Stripe

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
Super Leakproof®Dream Boxer

This best-selling boxer is a game changer.

FRESH FIX TECHNOLOGY®

Built-in protection that feels like nothing at all.

So you feel fresh and in-control.

Our patented 360 LeakSeal™ technology helps lock in leaks from every angle, even if you toss and turn. The internal brief absorbs about 7-9 super tampons worth of liquid, and it’s our heaviest absorbency yet.

Soft Top Layer

Soft Top Layer

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

Our Best-Selling Underwear

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Super Leakproof® Dream Boxer™

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Color: Blue Stripe

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SuperPlus Leakproof® No-Show High Rise

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Super Leakproof® Dream Team 2-Pack

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The Full Cycle Kit - Bikini

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Save on Leakproof Sets

The Full Cycle Kit - Bikini

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The Full Cycle Kit - High Rise

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24/7 Leakproof Kit - Bikini

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24/7 Leakproof Kit - High Rise

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$160.00
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The Heavy Flow Kit - Bikini

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$176.00
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The Heavy Flow Kit - High Rise

From 
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$192.00
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Super Leakproof® Dream Team 2-Pack

From 
$80.00 CAD
$96.00
Save $16

Super Leakproof® Dream Boxer™ 2-Pack

From 
$80.00 CAD
$96.00
Save $16
4.6
Rated 4.6 out of 5 stars
Based on 300 reviews
Total 5 star reviews: 238 Total 4 star reviews: 27 Total 3 star reviews: 16 Total 2 star reviews: 7 Total 1 star reviews: 12
88%would recommend this product
ComfortRated 4.6 on a scale of 1 to 5
EffectivenessRated 4.5 on a scale of 1 to 5
FitRated 0.1 on a scale of minus 2 to 2
Ease of UseRated 4.7 on a scale of 1 to 5
Write a Review (Opens in a new window)
300 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    So...that happened...

    Well I'll never wear anything different ever again. These are amazing; do they come in packs? I don't care, but if they do, great. Amazing and I only wish they existed 20 years ago. THEY ARE AMAZING!!!!!

    Talaria H. A.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    44 minutes ago
    Best Purchase Ever!

    Honestly my only regret with these is not buying them sooner, I have a heavy flow and these give me peace of mind to not leak thru onto my sheets at night. They are also very comfortable, highly recommend!

    Erica T.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    5 hours ago
    These boxers changed the game for me

    I’ve always had an extremely heavy flow and have found it’s incredibly hard to find good coverage especially at night. These boxers did everything I needed them to do and more. I am extremely impressed.

    Erin L.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    Yesterday
    Best Sleep Shorts Ever Made

    Soft. Breathable. Comfortable. Enough said.

    Amy R.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 days ago
    5 Stars

    Love these, wish there was an option without the buttons but so comfy and cute

    Jade
    Was this helpful?
  • Rated 5 out of 5 stars
    2 days ago
    5 Stars

    Love these, wish there was an option without the buttons but so comfy and cute

    Jade
    Was this helpful?
  • Rated 5 out of 5 stars
    2 days ago
    10/10

    Obsessed!! Slept in these last night (day two of my period - very heavy) and not a leak in sight. Added bonus they are so comfy! Ordering more!

    Caroline H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 days ago
    Love

    Love these! Have 4 pair and not only do they work well, serve their purpose….they are so cute and super soft!!

    Rachel C.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 days ago
    Great Night Time Boxers

    Dream boxer is very comfortable and provides great all-night protection. Fit is true to size.

    Rebecca B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 days ago
    Great for my teen daughter.

    The boxers give my teen peace of mind for overnight protection.

    Kelly B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    6 days ago
    Cute, comfy, leakproof

    Love the look of these and the fit is so nice for bedtime - got them in two colours!!

    Alexandra M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    6 days ago
    Comfy and cool!

    So happy I purchased these. The work v very well at absorption. Feel and look great.

    Julie M.
    Verified Buyer
    Was this helpful?

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