Join Our Rewards Program
Earn rewards and exclusive member-only benefits for free.
Super Leakproof® Dream Boxer™
Best Seller
Super Leakproof® Dream Boxer™
$48.00
USD
Buy 3+ Save 15%, Buy 5+ Save 20%
Absorbs about 7-9 super tampons
Built in leakproof underwear
Optimal overnight protection
Machine washable
Size and Fit Guide
How to Measure
In order to select the correct sizing, we recommend you take the following measurements using a soft tape measure. If necessary, ask someone else to help.
Waist
Measure around the narrowest part of your torso, usually just above your belly button. Keep the tape snug and level, but not tight. The number where it meets is your waist measurement.
Hip
Stand with your feet together and measure around the fullest part of your hips and buttocks. Keep the tape level and snug, but not tight. The number where it meets is your hip measurement.
Build Your 3-Pack
Super Leakproof® Dream Boxer™
Super Leakproof® Dream Boxer™
Super Leakproof® Dream Boxer™
Rewards Members Earn
48 Points
You May Also Like
Product Description
Comfort-First Fit
Worry-Free Protection
Heavy Absorbency
Easy to Wash
Machine washable just like regular underwear.
Zoom
How to Choose?
Essential
- • Days you don’t need leak protection. Everyday freshness and moisture wicking.
-
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.
-
about 8-14 tsp
-
about 1.5-3 regular pads
-
about 4-7 super tampons
-
about 1.5-3 menstrual cups
Light
- • Daily freshness. For sweat, discharge, period spotting, or backup protection.
-
about 1-3 tsp
-
about 1-3 pantyliners
-
about 1-3 regular tampons
-
about 0.5 menstrual cups
Moderate
- • For mid-cycle flow, surprise cough or sneeze leaks, or a really sweaty spin class.
-
about 4-8 tsp
-
about 1-1.5 regular pads
-
about 2-4 super tampons
-
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.
-
about 15-20 tsp
-
about 1.5-2.5 super pads
-
about 7-11 super tampons
-
about 2-3 menstrual cups
FRESH FIX TECHNOLOGY®
Soft Top Layer
Middle Layer
Leakproof Layer
Recently Viewed
Our Best-Selling Underwear
Shop All
Best Seller
Super Leakproof® Dream Boxer™
$48.00
USD
Buy More, Save More
Color: Eucalyptus Stripe Limited Edition
+1
#1 Overnight Solution
Super Leakproof® Dream Short™
$48.00
USD
Buy More, Save More
Color: Eucalyptus Limited Edition
+2
Leakproof UltraThin No-Show High Rise
$32.00
USD
Buy More, Save More
Color: Indigo Limited Edition
+5
#1 Daytime Solution
Leakproof UltraThin No-Show Bikini
$27.00
USD
Buy More, Save More
Color: Eucalyptus Limited Edition
+4
Leakproof UltraThin No-Show French Cut
$27.00
USD
Buy More, Save More
Color: Indigo Limited Edition
+2
Total 5 star reviews: 307 Total 4 star reviews: 32 Total 3 star reviews: 19 Total 2 star reviews: 9 Total 1 star reviews: 15
What our customers are saying
Generated by AI from 100 most recent customer reviews
Last updated 1 week ago
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
Search
Keywords
Rating
Height
Pant Size
Usage
Pant Size Purchased
382 reviews
- Rated 4 out of 5 stars23 minutes agoSo Comfortable!!
These boxers are beyond comfortable, they were so nice to sleep in and I had zero leaks for all 3 nights I wore them. I only give them 4 stars because of the sizing, I'd say they fit pretty big. I ordered a large as that is how I matched with the size guide but they are very generous around the waist and I did find I had to pull them up sometimes. Knix support was extremely helpful and suggested I size down so I will try that. Overall I definitely recommend these shorts and will absolutely be repurchasing!!
ElizabethVerified BuyerReviewingSuper Leakproof® Dream Boxer™ - Rated 5 out of 5 stars8 hours agoGreat jammies
These boxer style pajamas are extremely comfortable and cute. They can be mixed and matched with any of your current pjs and you have the knowledge that you’re still protected.
Wanda J.Verified BuyerReviewingSuper Leakproof® Dream Boxer™ - Rated 5 out of 5 starsYesterdayLove them!
So comfortable and cute!
Cailey H.Verified BuyerReviewingSuper Leakproof® Dream Boxer™ - Rated 5 out of 5 stars3 days ago5 Stars
Love these boxers for sleep. Pretty and practical.
christieReviewingSuper Leakproof® Dream Boxer™ - Rated 1 out of 5 stars4 days agoSIZE DOWN ! — inconsistency in sizing
I usually wear S size in my Knix underwear. I’ve been a returning customer for 4 years and I know that Small is my size. But in these shorts the small feels like a large. It is way way too big and therefore it leaks everywhere. A superleakproof underwear with a fit that is too large can definitely not do its proper job. I am super disappointed because other than that the fabric is comfy and the shorts are very good looking in purple. I wish I could change size.
Odile G.Verified ReviewerReviewingSuper Leakproof® Dream Boxer™ - Rated 5 out of 5 stars5 days agoWorth the Investment, a Must Try!
I'm an avid online shopper, but still never write reviews. Who has the time? However, I can't stop talking about these boxers! I've told everyone I know, so now the internet must also know how amazing they are. This was my first time trying any sort of period underwear, so I was very skeptical of how effective they'd actually be. I wore them day one overnight, which is by far my heaviest (I can go through a super tampon in a couple of hours on my first day for context), so you can imagine my surprise when I woke up dry the next morning! I mean as if I didn't even have my period bone dry! I was and am still astounded. Everyone with a period needs these. I admittedly tried a well reviewed cheaper option after my experience to see if I was a fan of leakproof underwear in general or knix specifically, and we'll just say that you get what you pay for. Nowhere near the same experience, knix is worth every penny! I've since ordered a second pair of Dream Boxers and a couple different other styles. They can't come soon enough! If you're considering making the switch, do it! You won't regret it.
CassieVerified BuyerReviewingSuper Leakproof® Dream Boxer™ - Rated 5 out of 5 stars6 days ago5 Stars
I like these boxers for sleeping! They give me the protection of the panties with the coverage of the boxer! I prefer these over the dream shorts.
KirstenReviewingSuper Leakproof® Dream Boxer™ - Rated 5 out of 5 stars1 week agoBoxers
These boxers are the best invention. I ordered one then a second pair. I took them on a long weekend trip and they worked out great.
Christine R.Verified BuyerReviewingSuper Leakproof® Dream Boxer™ - Rated 5 out of 5 stars1 week agoLove!!
So comfortable! I am going to buy at least 2 more pairs of these. The material is super soft and luxurious feeling, almost like nice hotel sheets. They do the trick and I don't worry about leakage at night. Even if you do leak on the side it cleans out in the wash on the cold cycle. I'm so happy with these sleep period shorts.
Cailee R.Verified BuyerReviewingSuper Leakproof® Dream Boxer™ - Rated 1 out of 5 stars1 week agoLeaked
Completely leaked all the way through the built in underwear and shorts, even wearing as a backup with a tampon to bed. Extremely disappointed
Lynnsie H.Verified BuyerReviewingSuper Leakproof® Dream Boxer™ - Rated 5 out of 5 stars1 week agoBoxers.
Holds in more leaking very well and looks better to wear them. These were purchased for my wife and I will need to buy more of a product this effective @ leak retention
Usage ( if you had an option ) is:
Heavy bladder leaks
Jeff A.Verified BuyerReviewingSuper Leakproof® Dream Boxer™ - Rated 5 out of 5 stars1 week ago5 Stars
Great products and truly leakproof.
ThereseReviewingSuper Leakproof® Dream Boxer™
