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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

Color: Periwinkle Limited Edition

Size:

Relaxed Fit

Size:

Size and Fit Guide

Build Your 3-Pack

Super Leakproof® Dream Boxer™

Color: Periwinkle Limited Edition

Size:

Size:

Super Leakproof® Dream Boxer™

Color: Periwinkle Limited Edition

Size:

Size:

Super Leakproof® Dream Boxer™

Color: Periwinkle 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. 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

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 440 reviews
Total 5 star reviews: 352 Total 4 star reviews: 36 Total 3 star reviews: 23 Total 2 star reviews: 13 Total 1 star reviews: 16
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.
88%would recommend this product
FitRated 0.2 on a scale of minus 2 to 2
ComfortRated 4.6 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
440 reviews
  • Rated 5 out of 5 stars
    Yesterday
    5 Stars

    To expensive

    Cynthia
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    Yesterday
    5 Stars

    I love these boxers but they are so expensive

    Cynthia
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    2 days ago
    Absolutely perfect!

    I love wearing cute PJs lounging around in the evening and to sleep in. I ordered these cute dream boxers, and pair them with pretty short sleeve tees. They look really great together, and no one would ever know that there is an extra layer to the boxers!

    K Profile picture for Knix
    Knix
    2 days ago

    Hey Mary!

    This is so amazing! We love that you found the perfect PJ combo - cute, comfortable, and completely discreet. There's nothing better than looking and feeling great!

    Team Knix

    Mary J. S.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    3 days ago
    SUPER LEAKPROOF DREAM BOXWES

    A WONDERFUL PRODUCT. YOU DO YOURSELVES PROUD IN MAKING SUCH A FINE PRODUCT. THANK YOU AND MY HUSBAND FOR GETTING ME SUCH A FINE GIFT.

    K Profile picture for Knix
    Knix
    3 days ago

    Hey Fay!

    This is so wonderful! We're thrilled you're loving your Dream Boxers and that your husband picked such a perfect gift. You both made our day!

    Team Knix

    FAY P.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    5 days ago
    amazing

    I love these so much. They are perfectly comfortable and cool. And super cute

    K Profile picture for Knix
    Knix
    5 days ago

    Hey Kim!

    Thanks so much for taking the time to review our Super Leakproof Dream Boxer! We're so happy to hear you're loving the comfort, coolness and cute style!

    Team Knix

    Kim O.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    6 days ago
    So Awesome!!!

    These are not my first pair of period underwear. I bought a few pairs from another company. I stopped wearing them after a few time because they wear too tight and uncomfortable. The sizes they displayed were incorrect. They were uncomfortable to take off because you had to worry about making a mess, also same issue with using the restroom. Had to worry when sleeping because they were uncomfortable and didnt want to leak on everything. I have worn 2 pairs of the knix leakproof dream boxers. One pair last night and one pair today working around the house. I have to say these are the best. They are so comfortable. They don't feel heavy. The clean up after using the restroom is a breeze. I slept all night and didn't have an issue. I sold with these.

    K Profile picture for Knix
    Knix
    6 days ago

    Hey Birginia!

    This is amazing! We're so happy our Dream Boxers are giving you the comfort and confidence you deserve. Thanks for choosing Knix!

    Team Knix

    Birginia B.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    6 days ago
    Super Leakproof® Dream Boxer™

    Love it!

    K Profile picture for Knix
    Knix
    6 days ago

    Hey Lucy!

    This made our day! We're so thrilled to hear you're loving your Super Leakproof Dream Boxer. There's nothing better than happy customers!

    Team Knix

    Lucy T.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 3 out of 5 stars
    1 week ago
    Boxers

    Rides up when lounging. But saves me from leaks in the night.

    K Profile picture for Knix
    Knix
    1 week ago

    Hey Dyan!

    Thanks for the honest feedback! We're so happy to hear our Dream Boxers are keeping you leak-free overnight - that's what matters most!

    Team Knix

    Dyan S.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 2 out of 5 stars
    1 week ago
    Didn’t serve it’s purpose

    I’d have liked the appearance better if they didn’t resemble u serpents and could just wear from at home. But, when I wore them and had an oops, the liquid went right out the sides.

    Great concept, hopefully a work in progress.

    Lisa L.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    1 week ago
    Daughter loves them

    Feel great. She has 1 size M & 1 size L. These run a little on the small side as others have noted. M fits better, but she kept the L also for times when she wants a looser fit (& flow not too heavy)

    K Profile picture for Knix
    Knix
    1 week ago

    Hey Nancy!

    So happy to hear your daughter is loving her Dream Boxers! Thanks for the helpful sizing insight - that's super useful for other customers!

    Team Knix

    Nancy L.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    1 week ago
    Best ever

    Super comfy and absorbent!

    K Profile picture for Knix
    Knix
    1 week ago

    Hey Emily!

    Thanks so much for taking the time to review our Super Leakproof Dream Boxer! We're so happy to hear you're loving the comfort and absorbency!

    Team Knix

    Emily R.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™
  • Rated 5 out of 5 stars
    1 week ago
    So comfy!

    They fit so nice and are very comfortable! I forget that I am wearing period underwear lol.

    K Profile picture for Knix
    Knix
    1 week ago

    Hey Haylee!

    Thanks so much for the amazing review! We're thrilled you find them so comfortable that you forget you're wearing them - that's the ultimate compliment!

    Team Knix

    Haylee C.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Boxer™

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