Heavy

Super Leakproof™ Cotton Boxer Brief

Super soft cotton modal underwear with super absorbent protection.

Emma has 53" hips and wears a Knix size XXXL

Emma has 53" hips and wears a Knix size XXXL

Heavy

Super Leakproof™ Cotton Boxer Brief

Super soft cotton modal underwear with super absorbent protection.

Absorbency: Heavy

Heavy

Super Leakproof™ Cotton Boxer Brief

Super soft cotton modal underwear with super absorbent protection.

Emma has 53" hips and wears a Knix size XXXL

Heavy

Super Leakproof™ Cotton Boxer Brief

Super soft cotton modal underwear with super absorbent protection.

Absorbency: Heavy

Ultra

Extra heavy periods, overnight protection & light bladder leaks - absorbs about 13-17 tsp or 65-85 mL which is the equivalent of 7-9 super tampons’ worth.

Heavy

Heavy periods, overnight protection & light bladder leaks - absorbs about 6-11 tsp, 30-55 mL or the equivalent of 3-6 super tampons’ worth.

Medium

Medium periods, light bladder leaks & sweat - absorbs about 3-6 tsp, 15 -30 mL or the equivalent of 2-3 super tampons’ worth.

Light

Light periods, backup protection & sweat - absorbs about 1.5-3 tsp, 7.5-15 mL or the equivalent of 1-3 regular tampons’ worth.

Lightest

Lightest periods, spotting, sweat & discharge - absorbs about 1-1.5 tsp, 4-7.5 mL or the equivalent of 0.5-1 regular tampon worth.

Zero

Everyday wear with no leakproof protection - zero absorbency.

	Absorbency	Good for
Ultra	Absorbs about 7-9 super tampons’ worth	Extra heavy periods, overnight protection & light bladder leaks
Heavy	Absorbs about 3-6 super tampons’ worth	Heavy periods, overnight protection & light bladder leaks
Medium	Absorbs about 2-3 super tampons’ worth	Medium periods, light bladder leaks & sweat
Light	Absorbs about 1-3 regular tampons’ worth	Light periods, backup protection & sweat
Lightest	Absorbs about 0.5-1 regular tampon worth	Lightest periods, spotting, sweat & discharge
Zero	Zero absorbency	Everyday wear with no leakproof protection

Our Leakproof Period Underwear features multi-layer technology that differs from style to style, but works to ensure you stay fresh, dry and protected. For example, in our Super Leakproof™ No-Show Bikini, the top layer wicks away moisture from your skin; the inner-layer absorbs the liquid and locks it in; and the outer layer keeps any liquid from spotting your clothes.

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994 reviews

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Vervee L T.
Verified Buyer
17 minutes ago
Rated 4 out of 5 stars
Knix boxers
I like the material but they were to short. I say your Ad for longer boxers which, if I had seen earlier, I would have gotten them instead.
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Jenn J.
Verified Buyer
1 week ago
Rated 5 out of 5 stars
Super Leakproof™ Cotton Boxer Brief
Amazing product I like that I never leaked and used on my heavy flow day with no issue with spills and it really was nice not to have to waer a pad and feel dry and smell free. I was also happy how they rinse and washed well. I will be purchasing more and the return policy is so amazing. Great job knix it makes we want ro support your company and cause so much more.
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Nicole H.
Verified Buyer
2 weeks ago
Rated 5 out of 5 stars
Cotton boy shorts
Very comfortable
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