Homepage hero image of woman wearing Kiseau organic cotton underwear, sustainable breathable design, smiling with natural confidence.

Organic Cotton | Icelandic Seaweed | Eucalyptus | Clean Stretch

Your intimate makeover begins here.

Upgrade to organic underwear full of sea-kissed nutrients.

Shop Seaweed Undies

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Your cooch called. She wants to breathe.

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Your cooch called. She wants to breathe.

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Your cooch called. She wants to breathe.

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Your cooch called. She wants to breathe.

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Your cooch called. She wants to breathe.

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Your cooch called. She wants to breathe.

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Your cooch called. She wants to breathe.

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Your cooch called. She wants to breathe.

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Your cooch called. She wants to breathe.

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Your cooch called. She wants to breathe.

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Your cooch called. She wants to breathe.

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Your cooch called. She wants to breathe.

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Ladies, it's time to liberate your intimate health.

Out with the UTIs, odor & hormone chaos.

Woman wearing Kiseau organic cotton Brazilian underwear for women, breathable sustainable fabric, back view.
Kiseau organic cotton Brazilian underwear for women, sustainable breathable fabric, front and back flat lay.

Organic Brazilian Cheeky Fit

$26.00

Size
Woman modeling Kiseau organic cotton bikini underwear, breathable and eco-friendly, back view.
Kiseau organic cotton bikini underwear for women, sustainable and breathable fabric, front and back views flat lay.

Organic Everyday Bikini

$26.00

Size
Back view of woman wearing Kiseau organic cotton thong underwear, sustainable breathable fabric, soft natural fit.
Kiseau organic cotton thong underwear for women, breathable sustainable fabric, front and back flat lay.

Organic Slim Fit Thong

$26.00

Size

Benefits of Seaweed Infused Organic Underwear

Certified clean fabric & dyes

Free of PFA's, Azo's & toxins

Irritation-free design

Vitamins, anti-oxidants, & amino acids

Naturally Breathable

Anti-bacterial & anti-odor

What women are saying

Customer Lucy holding Kiseau Organic Cotton & Icelandic Seaweed underwear boxes on balcony by the lake, sustainable and eco-friendly product.
Customer Lucy enjoying morning coffee on balcony surrounded by palm trees, wearing relaxed natural clothing, representing Kiseau’s sustainable lifestyle

Lucy

Verified Customer

I'm so happy I've introduced Kiseau natural thongs into my underwear rotation. I love that they don't use any toxic fabrics. They're soft and supportive in all the right places.

Five pairs of Kiseau Organic Cotton Thong Underwear in natural hue, breathable and toxin-free minimalist essentials.

Organic Slim Fit Thong | Set of 5

$130.00 $115.00
Customer Ann holding two Kiseau Organic Cotton & Icelandic Seaweed underwear boxes, sustainable and breathable small-batch packaging design
Customer Ann enjoying a sunny day near a fountain, wearing relaxed natural clothing, representing Kiseau’s sustainable lifestyle values.

Ann

Verified Customer

Been struggling to find natural undies without elastic bands that dig into my skin. These undies are silky soft and they hug me in all the right places without hurting me.

Woman modeling Kiseau organic cotton bikini underwear, breathable and eco-friendly, back view.

Organic Everyday Bikini

$26.00

Customer Reka holding Kiseau Organic Cotton & Icelandic Seaweed underwear packaging, smiling indoors, sustainable and toxin-free design.
Customer Reka smiling in portrait shot, sharing her experience with Kiseau’s natural organic cotton underwear.

Reka

Verified Customer

I noticed after switching to your underwear that my skin irritation has literally started to slowly heal after years of trying to find something that would help me.

Back view of woman wearing Kiseau organic cotton thong underwear, sustainable breathable fabric, soft natural fit.

Organic Slim Fit Thong

$26.00

LOVE AT FIRST PAIR.

Feel the difference from the very first wear.

See our Comfort-First Guarantee

Our Sea-Kissed Sets

Floating display of Kiseau organic cotton underwear in three styles, sustainable breathable fabric, minimalist discovery set design.

SAVE UP TO

10%

Discovery Set

All our styles. One set.

Shop now
Three Kiseau Organic Cotton & Icelandic Seaweed underwear boxes neatly arranged, highlighting sustainable minimal packaging design.

SAVE UP TO

10%

Sets of 3
Five Kiseau Organic Cotton & Icelandic Seaweed underwear boxes arranged on stone background, sustainable and eco-friendly packaging.

SAVE UP TO

12%

Sets of 5
Seven Kiseau Organic Cotton & Icelandic Seaweed underwear boxes on textured stone surface, sustainable and plastic-free packaging.

SAVE UP TO

15%

Sets of 7

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Underwear that puts your health first.

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Underwear that puts your health first.

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Underwear that puts your health first.

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Underwear that puts your health first.

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Underwear that puts your health first.

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Underwear that puts your health first.

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Underwear that puts your health first.

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Underwear that puts your health first.

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Underwear that puts your health first.

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Underwear that puts your health first.

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Underwear that puts your health first.

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Underwear that puts your health first.

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Two women wearing Kiseau organic cotton underwear, close-up torso view, sustainable breathable fabric, natural tones.

5 Reasons You'll Love Kiseau Underwear

Curated with a blend of organic cotton, wild Icelandic seaweed, eucalyptus & non-toxic stretch (GOTS & OEKO-TEX Certfied)

Infused with sea-kissed seaweed nutrients like vitamins, antioxidants and minerals that soothes your intimates.

Light, breathable fabric that keeps your intimates cool without trapping heat and moisture.

Elastic-Free freedom without digging, pinching or tight marks.

Free of icky toxins, PFA's, pesticides, harmful dyes & finishes that mess with your hormones.

Kiseau vs. Other Undies

Kiseau Undies
Nylon/Spandex Undies
Generic Bamboo Undies
Generic Cotton Undies
Generic Organic Cotton Undies
Breathable
Toxic-free
Sustainable
Biodegradable
No Elastic Band
Zero Forever Chemicals
Azo Dyes Free

Making Waves From Sea To Skin

We are ocean-obsessed. That’s why our undies are rich with skin-loving properties, derived from seaweed sustainably harvested every 4 years from the fjords of Iceland.

Discover Fabric

Our Mission Towards Zero Plastic

Mother nature doesn't want to wear our throwaways. So we're creating essentials with healthier fabrics that are better for our bodies and doesn't leave a trace behind.

Our Mission

Small Batch. Slow Fashion.

We are the antithesis to fast fashion products that are polluting our waters, lands and bloodstreams. We're here to set a new pace and standard in what we wear.

Learn More