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Super Leakproof® Cotton Boxer Brief
New
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.
Build Your 3-Pack
Super Leakproof® Cotton Boxer Brief
Super Leakproof® Cotton Boxer Brief
Super Leakproof® Cotton Boxer Brief
Rewards Members Earn
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 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
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: 12 Total 4 star reviews: 2 Total 3 star reviews: 4 Total 2 star reviews: 5 Total 1 star reviews: 4
52%would recommend this product
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Pant Size Purchased
27 reviews
- Rated 3 out of 5 stars2 days agoThey changed
These changed from my previous order. The "crotch" is separate from the panties themselves. Not a good move
Marian L.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 2 out of 5 stars3 days agoNot leakproof
I liked the cotton fabric and the fit was comfy but the floating gusset doesn't stay in place and I had leaks within the first 5 minutes of wearing them.
Karyne H.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 3 out of 5 stars3 days agoOkay
Found the legs too short and the liner did not stay in place as well.
Cassandra P.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 5 out of 5 stars4 days agoCotton boxer shorts
Excellent. Really comfy
Maureen L.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 1 out of 5 stars5 days agoPlease Beware of the "Floating Gusset"
I was super excited for these underwear after I gained some weight and my other bikini style period underwear started cutting into my legs in an uncomfortable way. I literally JUST got my period yesterday and so far I have stained 2/3 of my pairs because of the "innovative" floating gusset which I hd no knowledge of before purchasing. I truly am baffled why anyone would design period underwear in a way where the absorbent pad portion just moves around freely like when you put a wad of toilet paper in your pants in a pinch. There is no way a person with a period designed this; I wasn't even on my heaviest day and I already stained two pairs of the lavender color (which I was also excited about). I'd give these 10/10 for comfort and appearance and 0/10 for functionality. I'd be better off wearing regular boxer briefs with a pad (which I often do and NEVER have leaks). The back of the absorbency pad also doesn't go up far enough in the back. I may just sew the sides of the gusset to get my money's worth but for the price this is insanely disappointing and I won't be buying any more pairs unless they fix these issues.
DanielleVerified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 1 out of 5 stars1 week agoNo absorption at all
Not one drop was absorbed. Immediately bled through not even 15 minutes into wearing them.
And for the high price not worth it.
Alexandra A.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 5 out of 5 stars2 weeks agoPleased with Purchase
So comfortable on a plane - wore them on a weekend trip.
Priscilla D. V.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 5 out of 5 stars2 weeks ago5 Stars
Extremely comfortable and stylish.
MarianneReviewingSuper Leakproof® Cotton Boxer Brief - Rated 2 out of 5 stars3 weeks agoDisappointed
The boxer brief was not up to the standards that I expected. I did not like the quality and the fit. After washing, it seemed like the quality was not there.
Carolyn M.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 1 out of 5 stars3 weeks agoNot comfortable or leakproof
The floating gusset is not helpful at all. It moves around a lot, especially when working out or doing daily life tasks. Because the gusset moves, it rides up in both directions, and bleeding goes where it's not supposed to. Very disappointed. I was hopeful, but they aren't usable.
JeanetteVerified BuyerReviewingSuper Leakproof® Cotton Boxer Brief - Rated 4 out of 5 stars3 weeks agoPanty Lines!
I should’ve examined this better in the pictures before ordering, I just didn’t think to. 95% of the time, I wear boxer briefs, so I DONT have panty lines, and thongs can be so uncomfortable and I wear a lot of looser pants, so I can. So obviously that’s what I opted for in the leak proof underwear, but I did not anticipate how extreme the seams are for the absorbent piece are. In terms of panty lines, I may as well be wearing regular, bikini cut underwear, with quite thick seams honestly. I’ll just have to wear them accordingly (around the house etc) and get myself a different cut for everyday use!
TerrinReviewingSuper Leakproof® Cotton Boxer Brief - Rated 5 out of 5 stars1 month agoSuper Leakproof® Cotton Boxer Brief
Extremely comfortable and feel confident wearing them.
Lesley O.Verified BuyerReviewingSuper Leakproof® Cotton Boxer Brief
