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Super Leakproof® Cotton Boxer Brief
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Super Leakproof® Cotton Boxer Brief
$42.00
USD
Buy 3+ Save 15%, Buy 5+ Save 20%
Absorbs about 6 super tampons
Breathable cotton
More absorbency without bulk
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.
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Super Leakproof® Cotton Boxer Brief
Super Leakproof® Cotton Boxer Brief
Super Leakproof® Cotton Boxer Brief
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42 Points
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Comfort-First Fit
Heavy Absorbency
Cozy Cotton-Blend
Soft cotton with a hint of spandex feels luxurious against your skin.
Worry-Free Protection
An innovative floating gusset provides leak protection from every angle.
Easy to Wash
Machine washable, just like your regular underwear.
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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
Super Leakproof® Cotton Boxer Brief
Comfort that goes beyond your cycle
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FRESH FIX TECHNOLOGY®
Cotton meets patented protection.
A sewn-in, floating liner soaks up about 6 super tampons’ worth of liquid—so you stay fresh, comfortable, and in control.
Soft Top Layer
Middle Layer
Leakproof Layer
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How to wash
Knix underwear is 100% reusable and machine washable, just like your regular undies.
Not required. But for best results, you can rinse your leakproof with cold water in the tub or sink before washing.
Machine wash on a cold, gentle cycle with mild detergent.
For their longest life, air drying is best. Hang or lay flat to dry.
Fabric softeners, bleach, ironing, or heat from the dryer.
Total 5 star reviews: 17
Total 4 star reviews: 2
Total 3 star reviews: 6
Total 2 star reviews: 10
Total 1 star reviews: 10
42%would recommend this product
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How do you use your Leakproof?
Usual Pant Size
45 reviews
- Rated 3 out of 5 stars4 days agoDisappointment
Let’s start with the positives. They are super comfortable- I love the cotton. Feels more like normal boxers.
Now for the negative, because the sides of the pad are now sewn in, the pad can move around or flip. I was working and noticed I leaked through my pants. After investigating I found out the pad (that’s supposed to protect you) got bunched up and obviously stopped working. I wasn’t able to leave work and I nothing to change into. I was living on hope that no one would see the period stain on my pants.
NNicoleVerified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 2 out of 5 stars6 days agoNever again.
I bought these thinking that they would be great to wear under my bike shorts when cycling. I washed them once and the liner is not even stitched to the outer section. It moved all over while I was riding and I came home with the insides of my groin raw. I realize they aren't made specifically for this purpose but they should have been built a bit better than they are. I will not waste my money on this product again. Very disappointed as I have been a customer for years wearing their products.
MCMargaret C.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 5 out of 5 stars1 week agoCotton Boxer Brief
Best ever! Love them!
KKnix1 week agoHey Mary!
This is so amazing to hear! We're beyond happy you love your Cotton Boxer Briefs. There's nothing better than hearing our customers feel amazing in their Knix!
Team Knix
MHMary h.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 3 out of 5 stars1 week agosuper leakproof cotton boxer brief
i was not that happy with the loose leakproof pad.
JRjohanna r.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 2 out of 5 stars1 week agoThe lining
The lining is not connected to the brief all the way around I don’t like thst
BRBarbara R.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 2 out of 5 stars1 week agoPoor leakproof lining
The leak proof fabric stretches and is no longer leakproof --it falls to the side because it no longer fits the underwear. I'm said about this because the boxers themselves are comfortable.
JFJacqueline F.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 5 out of 5 stars2 weeks agoI am in love
I love this underwear; it is so comfortable and leak proof. It does come a little large so order a size down, but it is so comfortable. I am definitely going to order this again.
KKnix2 weeks agoHey Teresa!
We're so happy you're in love with the Super Leakproof Cotton Boxer Brief! Thanks for the helpful sizing tip too - comfort is everything!
Team Knix
TDTeresa D.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 2 out of 5 stars2 weeks agoNot nearly as much protection as advertised
Super comfortable and nice fabric, I like them a lot better than the dream short. HOWEVER, the leak proof pad area doesn't go far enough back to protect against anything while you sleep, AND the pad isn't sewn onto the gusset so it moves around, sticks to you, clings to one side, etc, causing a ton of leaks. I can barely wear these as backup coverage, that's how badly designed the absorbance area of this underwear is. I was hoping for fully lined protection from a boxer style but it's not even close.
RHRikjavic H.Verified ReviewerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 5 out of 5 stars3 weeks agoGreat undies
Comfortable
KKnix3 weeks agoHey Kombas!
Thanks so much for taking the time to review our Super Leakproof Cotton Boxer Brief! We're so happy to hear you're loving the comfort!
Team Knix
KMKombas M.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 1 out of 5 stars1 month agoLoosens with wear
Loosens with washing and wear. Too big and does not follow listed sizing.
CNChristina N.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 5 out of 5 stars1 month agoJ'adore
Confortable et bien ajusté!
KKnix1 month agoSalut Sylvie!
Merci beaucoup pour cet avis fantastique! On est ravi que tu adores le confort et l'ajustement de ton Cotton Boxer Brief!
Team Knix
SBSylvie B.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 2 out of 5 stars1 month agoyou can feel the pad on your bum
feels like wearing a diaper UGH. at least it's cotton?
KMKatherine M.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief
