Skip to content

Your Bag

Your cart is empty

But you're full of potential..

Create an account to join Club Knix and earn points on this order
#1 Overnight Solution

Super Leakproof® Dream Short™

$48.00 USD

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

Absorbs about 5.5 super tampons

Invisible under clothes

Optimal overnight protection

Machine washable

Ashley has 39” hips and wears KNIX S | Eucalyptus

Ashley has 39” hips and wears KNIX S

| Eucalyptus
Ashley has 39” hips and wears KNIX S | Eucalyptus

Ashley has 39” hips and wears KNIX S

Ashley has 39” hips and wears KNIX S | Eucalyptus

Ashley has 39” hips and wears KNIX S

Ashley has 39” hips and wears KNIX S | Eucalyptus

Ashley has 39” hips and wears KNIX S

| General
| General
| General
| General
| General

Ashley has 39” hips and wears KNIX S

Color: Eucalyptus Limited Edition

Size:

True to Size

Size:

Size and Fit Guide

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

"I was doubtful at first, but I was so wrong!! They are so comfortable, and I feel like they offer loads of protection. I have purchased 4 more pairs since."

- KELLY W. VERIFIED BUYER

Product Description

The ultimate comfort for your most sensitive days. Whether you’re managing a heavy period, postpartum recovery, or bladder leaks, the Super Leakproof® Dream Short™ offers a snug, supportive fit that stays in place all night. The high-rise waistband gently hugs your core, while the soft, breathable fabric ensures no-chafe comfort. Designed to replace bulky overnight pads, these sustainable period shorts offer a eco-friendly, "no-bulk" solution for total peace of mind. Available in inclusive sizes XS to 4XL.

Comfort-First Fit

Boxer short style that hugs your body and stays in place as you sleep.

Worry-Free Protection

Designed with an extra-long liner and our patented 360 LeakSeal™, it helps lock in leaks from every angle, even if you toss and turn.

Heavy Absorbency

Absorbs 5.5 super tampons worth of liquid for overnight protection, heavy flow days, and light bladder leaks.

No-Show Style

Buttery-soft and smooth fabric gives a seamless look and feel. Disappears under clothes, even leggings.

Easy to Wash

Machine washable just like regular underwear.

Zoom

Ashley has 39” hips and wears KNIX S | Eucalyptus
| Eucalyptus
Ashley has 39” hips and wears KNIX S | Eucalyptus
Ashley has 39” hips and wears KNIX S | Eucalyptus
Ashley has 39” hips and wears KNIX S | Eucalyptus
| General
| General
| General
| General
| 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
Super Leakproof®Dream Short

Leakage? We don't know her.

PATENTED LEAKPROOF TECHNOLOGY

Built-in protection that feels like nothing at all

Our original Fresh Fix Technology® features a built-in absorbent liner absorbing about 5.5 super tampons worth of liquid so you feel fresh and in-control. Plus, our 360 LeakSeal™ technology locks in leaks at every edge, even if you toss and turn.

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 6,737 reviews
Total 5 star reviews: 5.2k Total 4 star reviews: 712 Total 3 star reviews: 336 Total 2 star reviews: 234 Total 1 star reviews: 227
What our customers are saying
Customers say these shorts are exceptionally comfortable and feel like regular underwear, with many praising their soft texture and perfect compression. Users appreciate the worry-free sleep and confidence they provide during periods. Many reviews mention the shorts work well for gym workouts and daily wear. However, some customers experience leakage issues, particularly side leakage and concerns about gusset width and positioning. Common feedback includes requests for lighter absorbency options and more color choices. While most find them true to size, some recommend sizing up for thicker thighs. Several users note durability concerns with seams separating after extended wear.
91%would recommend these products
Keywords
Keywords
Rating
Ratings
6,737 reviews
  • Rated 5 out of 5 stars
    20 hours ago
    5 Stars

    Love them!

    Brenda
    Reviewing
    Super Leakproof® Dream Short™
  • Rated 5 out of 5 stars
    20 hours ago
    5 Stars

    Love them!

    Brenda
    Reviewing
    Super Leakproof® Dream Short™
  • Rated 5 out of 5 stars
    20 hours ago
    5 Stars

    Love them!

    Brenda
    Reviewing
    Super Leakproof® Dream Short™
  • Rated 5 out of 5 stars
    2 days ago
    Love these!

    Very comfortable and soft! Beautiful print ! Highly recommend!

    Suzanne W.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Short™
  • Rated 5 out of 5 stars
    2 days ago
    5 Stars

    Love the look and comfort!

    Susan
    Reviewing
    Super Leakproof® Dream Short™
  • Rated 5 out of 5 stars
    2 days ago
    Dream Short

    Very comfortable

    Brenda B.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Short™
  • Rated 2 out of 5 stars
    3 days ago
    Not durable/ absorbent area is too small

    These are so comfortable but they have a couple major flaws. First the price is prohibitive to being able to get a few to get you through a period. I’ve had mine for a few years and they’re not that durable. The whole side seam opened and most of the trim has come off. They fit really well and are my most comfortable sleep shorts but that price is intense.

    Jessica
    Verified Reviewer
    Reviewing
    Super Leakproof® Dream Short™
  • Rated 5 out of 5 stars
    3 days ago
    Amazing!

    The material on these shorts is super soft and comfortable, also very absorbent. I also like how smooth and formfitting they are, no lines and easy to wear under anything. 10/10 will be buying more!

    Cailee R.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Short™
  • Rated 5 out of 5 stars
    4 days ago
    Super leakproof dream short.

    These are my new favorite undies. Very comfortable and does not ride up. Can't wait for more pretty summer colours in this dream short.

    Jane M.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Short™
  • Rated 4 out of 5 stars
    4 days ago
    Updated Review: 3.5 stars from me

    Alright, so overall, I still really like these undies but unfortunately I woke up this morning with a bit of a mess. I was worried about this exact issue given the narrowness of the pad lining in relation to the overall width of the gusset but figured it'd be OK because I'd gone the day prior in my other new pair being up, out, and about without any issues. I am honestly surprised that overnight brought the issue out given I was lying down rather than occurring while I had been vertical.

    So basically, the pad portion of these pants is sewn in and looks/is shaped much like a bicycle seat: long and pretty narrow anteriorly with a wider seat. It would be a huge design improvement for the absorbent area to expand the entire width of the crotch. I think this would be a must for me to be confident wearing these out on anything but an extremely light day. Any opportunity for a quick "gush" and I think these are out of play as the risk of the pad not being able to grab the liquid and pull it in fast enough before it spills over the side to the non-absorbent fabric would be high.

    I want to love these, I really do!! They have everything else going for them.

    Colleen S.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Short™
  • Rated 5 out of 5 stars
    5 days ago
    So soft!

    I was shocked at how comfortable these were when I first put them on. They are incredibly soft, stretchy but fitted at the same time. The pad portion felt a bit bulky and boxy at first, and I was worried that it didn't seem to cover as much area as my other Period pants do, but it seems to be working out fine so far. I also feel like the angle of the cut on the legs has been spectacularly refined. I really like them a lot. I will say, I don't think I'd get a light color or pattern again in the future though as there is a notable difference in sheerness between the pad area and the rest of the pants.

    Colleen S.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Short™
  • Rated 5 out of 5 stars
    5 days ago
    Love!

    These are my favorite style out of all the ones I’ve tried. I feel the most supported in these. Was skeptical about buying period underwear and fully getting rid of tampons, but I’m so glad I decided to try it. These underwear are great and holds very well. My flow is heavy the first two days and I didn’t have any problems. Highly recommend if you’re questioning!

    Macayla B.
    Verified Buyer
    Reviewing
    Super Leakproof® Dream Short™

Your underwear questions, answered.