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Merino Wool Underwear

Breathable, everyday underwear, made from the softest Australian Merino wool.

Au Natural
Au Natural

Self-Care Down There

Sustainable Underwear More Breathable Than Cotton

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Au Natural

Merino Seamless Thong

Au Natural

Merino Everday Bikini

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Merino Peony Thong

Good For You

Our undies are made from Merino wool which is a natural material. Merino provides next-level benefits women need for their V: breathability, odor-resistance, temperature regulation. 

Au Natural
Au Natural

Barely-There Feel

Designed for all day comfort, Au Natural is creating undies that are better for our bodies and support our most sensitive area.



Transports moisture away from the skin, meaning less sweat on your body. Helps keep your most private parts cool when it gets hot.


Softer than cashmere and smoother than silk, so no uncomfortable itching or scratching.

Odor Resistant

Absorbs odor molecules caused by sweat, meaning you can wear your undies longer without worrying about any unpleasant smells.


Moves with your body then returns to its original shape after washing, meaning your undies stretch to fit your unique size.


Naturally durable and high-quality means no guilt keeping undies for a year+.


Merino wool fiber is 100% natural, renewable, and biodegradable (good for the planet).

What Our Customers are Saying

Au Natural x The Woolmark Company

Au Natural has partnered with The Woolmark Company to create "lace-inspired" Merino wool underwear.

The newest collection combines feminine colors with the game-changing benefits of Merino wool.

Au Natural is the first Woolmark-certified underwear in the United States. This means you can trust the quality of the product and the journey of the wool from the sheep’s coat to your top drawer.

Au Natural

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