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Super Leakproof® Dream Boxer™

$48.00 USD

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

Absorbs about 7-8 super tampons

Built in leakproof underwear

Optimal overnight protection

Machine washable

Front view of model wearing the Super Leakproof® Dream Boxer™ highlighting the coverage and fit

Binta has 44” hips and wears KNIX L Bikini

Super Leakproof® Dream Boxer™ shown front-facing against a light gray background
Back view of model wearing the Super Leakproof® Dream Boxer™ highlighting the coverage and fit

Binta has 44” hips and wears KNIX L

Text on Image: Absorbs about 7-9 super tampons. No more stained sheets. Super soft, pajama-style fit
Full-body view of model wearing the Super Leakproof® Dream Boxer™ highlighting the coverage and fit

Binta has 44” hips and wears KNIX L

Text on Image: Absorbs about 7-9 super tampons worth. 360 LeakSeal™ technology traps leaks
Text on Image: An extra-long 13-14.5" gusset to help keep anything from leaking through
Text on Image: Loose fit boxer with built-in brief

Binta has 44” hips and wears KNIX L Bikini

Color: Blue Stripe

Size:

Relaxed Fit

Size:

Size and Fit Guide

Build Your 3-Pack

Front view of model wearing the Super Leakproof® Dream Boxer™ highlighting the coverage and fit

Super Leakproof® Dream Boxer™

Color: Blue Stripe

Size:

Size:

Front view of model wearing the Super Leakproof® Dream Boxer™ highlighting the coverage and fit

Super Leakproof® Dream Boxer™

Color: Blue Stripe

Size:

Size:

Front view of model wearing the Super Leakproof® Dream Boxer™ highlighting the coverage and fit

Super Leakproof® Dream Boxer™

Color: Blue Stripe

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. Once an order is placed, we cannot guarantee any address updates, order changes or cancellations. Orders placed on Friday after 1PM will not be shipped until the following Monday.


Split Shipments

Most orders will ship from a single warehouse. However, we occasionally ship from a combination of warehouse locations, so you may receive your order in multiple parts. If items from your order ship in separate packages, we’ll send you tracking information for each package when it becomes available.

Delivery Timelines

For the most up-to-date delivery time estimates, please refer to the shipping timeline at checkout. Delivery timelines do not include processing times. See above for details. All transit times are measured in business days which are Monday-Friday, excluding holidays.

Please note, all shipping timelines are estimates and are not guaranteed.

We are not able to ship to US territories (including Puerto Rico, U.S. Virgin Islands, Guam, Northern Mariana Islands and American Samoa) at this time.

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 8 super tampons. Great for heavy flow days, overnight protection, and light bladder leaks.

Easy to Wash

Machine washable, just like your regular underwear.

Zoom

Binta has 44” hips and wears KNIX L Bikini | Front view of model wearing the Super Leakproof® Dream Boxer™ highlighting the coverage and fit | Blue Stripe
Binta has 44” hips and wears KNIX L | Back view of model wearing the Super Leakproof® Dream Boxer™ highlighting the coverage and fit | Blue Stripe
Binta has 44” hips and wears KNIX L | Full-body view of model wearing the Super Leakproof® Dream Boxer™ highlighting the coverage and fit | 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

How it Compares

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.

4.6
Rated 4.6 out of 5 stars
Based on 473 reviews
What our customers are saying
Customers say these boxer shorts are extremely comfortable and provide excellent overnight protection during periods. Many find them soft, breathable, and perfect for sleeping without worrying about leaks. Users appreciate the built-in absorbent underwear that doesn't ride up or squeeze. Common feedback includes praise for their comfort level and peace of mind during heavy flow nights. Several mention they run large, with some needing to size down for proper fit. While most love the coverage and protection, a few note concerns about gusset size or fit issues with the inner underwear portion.
89%would recommend this product
FitRated 0.2 on a scale of minus 2 to 2
ComfortRated 4.7 on a scale of 1 to 5
EffectivenessRated 4.5 on a scale of 1 to 5
Keywords
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Rating
Ratings
Height
Height
How do you use your Leakproof?
How do you use your Leakproof?
Usual Pant Size
Usual Pant Size
473 reviews
  • Rated 5 out of 5 stars
    4 minutes ago
    Boxers

    Best boxers ever.

    LF
    Lynn F.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    21 hours ago
    Soooo comfortable!

    I loved the way these fit and wish I could wear them everyday

    CN
    Candice N.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    Yesterday
    just as advertised

    These dream boxers are comfortable and perfect for nighttime. I've also discovered that these boxers are also comfortable to wear under loose fitting long pants, jeans and shorter capri-style pants. Win win all round.

    MV
    MaryAngela V.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    3 days ago
    All night comfort!

    the super leakproof dream boxer is just that. Comfort all night and replaces "discreet" pads I previously used overnight.

    MV
    MaryAngela V.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    4 days ago
    5 Stars

    I love them!!!!

    A
    Ashley
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    4 days ago
    5 Stars

    So happy wiith sleeping boxer Comfortsble

    B
    Barbara
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    5 days ago
    A game changer for me

    I have never been a fan of pads but never thought about this being an option until recently and they are worth every penny! It feels like you’re free bleeding and the liner dries very fast and doesn’t feel like you’re wearing a diaper. My period feels so much more comfortable now and I will never go back to pads!

    TB
    Tristyn B.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    6 days ago
    Amazing 10/10

    So comfortable. 10/10

    JM
    Jenna M.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    1 week ago
    5 Stars

    Amazing!!!! I want to buy more bit it is expensive!

    L
    Lexy
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    1 week ago
    Love

    Cute and effective, great to sleep in

    MO
    meaghan o.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    1 week ago
    Great

    Love knix

    DD
    desiree d.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    1 week ago
    Dream boxer

    Great for nighttime, you feel confident when wearing them, washer and dryer safe

    SH
    Sharon H.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™

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