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Home / Boxer Underwear / Super Leakproof® Dream Boxer™
Best Seller

Super Leakproof® Dream Boxer™

$48.00 CAD

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

Absorbs about 7-9 super tampons

Built in leakproof underwear

Optimal overnight protection

Machine washable

Absorbency: Heavy

Color: Fuchsia Gingham Limited Edition

Size:

Relaxed Fit

•

Size:

Size and Fit Guide

Leakproof Underwear is Sales Tax Free in Canada*

Build Your 3-Pack

Super Leakproof® Dream Boxer™

Color: Fuchsia Gingham Limited Edition

Size:

Size:

Super Leakproof® Dream Boxer™

Color: Fuchsia Gingham Limited Edition

Size:

Size:

Super Leakproof® Dream Boxer™

Color: Fuchsia Gingham Limited Edition

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 48 Points

1 Dream Boxer™ is sold every 3 minutes

No wonder we've sold out 5x times

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 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 up to 9 super tampons. Great for heavy flow days, overnight protection, and light bladder leaks.

Easy to Wash

Machine washable just like regular underwear.

Zoom

| Fuchsia Gingham
| Fuchsia Gingham
| Fuchsia Gingham
| 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
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

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

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4.6
Rated 4.6 out of 5 stars
Based on 404 reviews
Total 5 star reviews: 323 Total 4 star reviews: 34 Total 3 star reviews: 18 Total 2 star reviews: 13 Total 1 star reviews: 16
Reviews Summary
Customers say these boxer shorts are exceptionally comfortable and soft, providing excellent overnight protection during periods. They appreciate the breathable fabric and secure fit that stays in place while sleeping. Many mention feeling confident about leak protection, even on heavy flow days. Users find them cute and stylish enough to wear as regular sleepwear or loungewear. Common feedback includes praise for the peace of mind they provide and their versatility beyond period use. Some note sizing runs large and recommend sizing down for proper fit. A few mention wishing for pockets or higher waistband coverage. Most customers plan to purchase additional pairs.
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 0.2 on a scale of minus 2 to 2
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404 reviews
  • Rated 5 out of 5 stars
    5 hours ago
    So comfy, but size down

    These are so so comfortable and perfect for sleeping in, but if you are between sizes, I would recommend sizing down. I bought both a large and a medium and the large is a bit too big but the medium fits perfect.

    sam
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    Yesterday
    Super leakproof Dream Boxers

    These are bit large, cute style. Havent worn. Will try washing and see if they snug a bit. May order a pr in medium. Having leg surgery so shorts will be good for exercises.

    Marg M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 days ago
    So comfortable! Wear alone or with other period options, forget leaks!

    At 50, leaks have ruined more clothes, chairs and mattresses in my lifetime than I care to remember! I really wish products like this existed 30 years ago! Cute styles and colors to chose from. And now bras and swimwear, too?! Knix is my go to from now on! Thank you to whoever invented this!

    Kim C.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    6 days ago
    Super leakproof dream boxer

    Very comfortable and reliable.

    I wear them at night.

    Easy delicate wash cycle, hang inside to dry

    Enjoy the stylish stripes in all 4 colors

    Cynthia m.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    so comfortable

    wear them daily

    Sandra J.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    5 Stars

    Super comfy, great protection and amazing quality

    polina
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    Super Leakproof Dream Boxer

    Amazingly comfortable

    Maureen L.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    Amazing Short

    I find these comfortable and super cute. But be aware they do run extremely large, I had to exchange a couple times to get the right fit. My only wish for these is that they had pockets!

    Mila W.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    1 week ago
    5 Stars

    Great but i thought the sizing might run small and it definitely doesn't. Would get mediu. Next time. These shorts are such a great idea

    Cherie
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    The Best!

    I fully understand the hype of these Dream Boxers - so comfortable, cute colors, and perfect nighttime absorption. I want more colors!!

    Megan V. A.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    I’m hooked

    Such a comfy option for sleeping!

    Elsbeth W.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 weeks ago
    Pleasantly surprised

    Had to size down for a more fitted feel. Also wish it was a slightly higher rise. But overall very comfortable. Love the wider waistband.

    Sarah V. B.
    Verified Buyer
    Was this helpful?

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