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

Super Leakproof® Dream Boxer

$48.00 CAD

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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

Sarah has 38.5” hips and wears KNIX M | Black

Sarah has 38.5” hips and wears KNIX M

| Black
Sarah has 38.5” hips and wears KNIX M | Black

Sarah has 38.5” hips and wears KNIX M

| Black
| Black
| Black
| Black

Sarah has 38.5” hips and wears KNIX M

Absorbency: Heavy
Drop
Drop
Drop
Drop
Drop

Color: Black

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.
Easy Exchanges within 30 Days

Returns

Returns

Sale & Last Call

Items discounted 30% and below are eligible for size exchange or store credit. Items discounted above 30% and above are final sale – no refunds, store credits, or exchanges can be accommodated.

Free Returns

Knix covers the return shipping fees for exchanges and refunds initiated through our Return & Exchange Portal. Exchange orders initiated through our Return & Exchange portal are also eligible for free shipping within the USA and Canada. Please note, the shipping fees on your original order are non-refundable.

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

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

Sarah has 38.5” hips and wears KNIX M | Black
| Black
Sarah has 38.5” hips and wears KNIX M | Black
| Black
| Black
| Black
| Black

How to Choose?

Essential

Drop
Drop
Drop
Drop
Drop
  • • Everyday Wear
  • • No leakproof protection
  • tsp
    0 tsp

Heavy

Drop
Drop
Drop
Drop
Drop
  • • heavy period days
  • • overnight protection
  • • light bladder leaks
  • 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

Drop
Drop
Drop
Drop
Drop
  • • light period days
  • • sweat
  • • discharge
  • tsp
    about 1-3 tsp
  • pad
    about 1-3 pantyliners
  • tampon
    about 1-3 regular tampons
  • cup
    about 0.5 menstrual cups

Moderate

Drop
Drop
Drop
Drop
Drop
  • • moderate period days
  • • light bladder leaks
  • • sweat
  • 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

Drop
Drop
Drop
Drop
Drop
  • • extra heavy period days
  • • overnight protection
  • • light bladder leaks
  • 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

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 232 reviews
Total 5 star reviews: 184 Total 4 star reviews: 22 Total 3 star reviews: 14 Total 2 star reviews: 5 Total 1 star reviews: 7
89%would recommend this product
Write a Review (Opens in a new window)
232 reviews
  • Rated 5 out of 5 stars
    22 seconds ago
    Love!

    These are super comfortable and protect all night!

    Dianne G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    2 hours ago
    Love! love!

    These are great!

    Jane C.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    9 hours ago
    Amazing!!🩷

    Cute and comfortable all night!

    Jenna L.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    14 hours ago
    Super comfortable and protective

    Stylish, comfortable, and protective!

    Sofie G.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    Yesterday
    Confort

    So comfy to sleep in and very well protected

    Sharon B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    Yesterday
    Finally a pajama for my periods

    I hate wearing bottoms when I sleep. It’s a sensory thing that popped up in my 20’s. But I have nightmare periods because of my heart shaped uterus, so I always suffered wearing uncomfy pajama bottoms on my period weeks and not sleeping very well. I thought I would give these a go and I wish I had them in my life sooner!!!! They are so cozy I only feel like I’m wearing undies!! I can finally sleep better at night knowing I’m protected from leaks and I dont have to fight with uncomfy bottoms over my undies over my pads. I wish Knix had been around in my younger years but wow what a great idea/product now!

    Sarah
    Was this helpful?
  • Rated 5 out of 5 stars
    3 days ago
    Love Them!

    Love them but price is high for me

    Kristie H.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 days ago
    Dream Boxers are a dream

    Love these! Comfy, material is light. Fit just a bit loose but I’d rather that than too tight. Definitely recommend!

    Bev B.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    3 days ago
    In Love!!

    Ok so I finally got to try these out and I’m hooked!! They are so comfortable, like crazy comfy, and soft and just so good! I even tried wearing them under pjs and a pair of pants (not skinny jeans or anything, like a carpenter pant so a looser fit) and they were still crazy comfy, no bunching or weird lines, just comfy. Anyway, I will definitely be grabbing more of these soon!!

    Simply A. M.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 days ago
    Amazing

    These are soft, comfortable and make sleeping a dream!

    Connor P.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    4 days ago
    Game changer!

    So comfortable and such a game changer for me! Sometimes my period is unpredictable and often heavy, and there was no leakage at all! Will definitely be purchasing more!

    Laura S.
    Verified Buyer
    Was this helpful?
  • Rated 5 out of 5 stars
    5 days ago
    So cute!

    Comfy and cute!

    Brooke G.
    Verified Buyer
    Was this helpful?

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