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Women's Merino Thong

3.7
Rated 3.7 out of 5 stars
19 Reviews
$35
$35
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Model Info +

Model is 5'10", has a 24" waist and is wearing size M

Women's Merino Thong

3.7
Rated 3.7 out of 5 stars
19 Reviews
$35
$35

This super-stretchy thong comes with a no-show, seamless cut that feels lightweight and breathable no matter the excursion. Enjoy everyday comfort that is elevated with the natural performance of Merino wool.

 

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Color Black
Size
Size guide

This super-stretchy thong comes with a no-show, seamless cut that feels lightweight and breathable no matter the excursion. Enjoy everyday comfort that is elevated with the natural performance of Merino wool.

 

Learn More

This super-stretchy thong comes with a no-show, seamless cut that feels lightweight and breathable no matter the excursion. Enjoy everyday comfort that is elevated with the natural performance of Merino wool.

 

Learn More
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Why our customers
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  • Anti-odor Anti-odor
  • Fast drying Fast drying
  • Wicks moisture Wicks moisture
  • Light and breathable Light and breathable
Fabric and Details
  • 60% Merino Wool,  34% Nylon, 6%Spandex
  • 290 gsm
  • Seamless Knit Fabric for all day comfort. 
  • Lightweight 
  • Fast drying
  • Fiber micron: Ultrafine 16.5
15 µm
16.5 µm
25 µm
Care instructions
  • Machine wash in cold gentle cycle
  • Wash with like colors inside out
  • Do not bleach 
  • Do not tumble dry 
  • Iron in low temperature 
  • Lay flat to dry in shade
Merino Care 101
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Everyday Comfort and Performance.

  • Incredibly soft on the skin thanks to our Merino wool-nylon blend.
  • Seamless Knit Fabric for all-day comfort.
  • Maintains a cool feel with temperature-regulating material.
  • Breathable, moisture wicking and odor-resistance.
Everyday Comfort and Performance.
Nature's Miracle Fabric

Nature's Miracle Fabric

Merino wool fibers allow it to wick moisture away from your skin, which ensures comfort and moisture management. Merino wool’s complex structure locks odor molecules within the fiber and only releases them on washing.

Softer Than Cotton

Softer Than Cotton

This wool isn’t like your typical itchy sweater. We only use superfine (16.5 micron) Merino wool, resulting in a luxuriously silky soft shirt that’s lighter and much softer than the average Merino or cotton shirt. It’ll also maintain its form over time and not get ruined after a wash, like most clothes these days.

“The perfect T-shirt can see you through almost any situation, and Unbound makes a strong bid for the title with their chic Merino designs.”

"It's the most popular T-shirt in our Merino guide and well-loved by travelers. It's very soft and lightweight, and it packs down to a tiny roll."

“These tees have a sophisticated European elegance to them, thanks to both the material and design. Just looking at them makes you feel chic.”

“Between the flattering fit and the classic style, it's a great option for travel.”

"I may hold off on washing this T-shirt for another few weeks. It miraculously looks and smells like it was just cleaned."

Travel Leisure
WIRED
Forbes
Lonely Planet
Fast Company

"This is the perfect base layer as it’s super lightweight and is anti-wrinkle and moisture-wicking. This can quickly become your new closet staple at home and on the road."

"I may hold off on washing this T-shirt for another few weeks. It miraculously looks and smells like it was just cleaned."

"Lightweight and breathable, this shirt has a perfectly soft feel. The thin material is moisture-wicking, making this great for layering or wearing on its own."

"Unbound Merino sits at the intersection of travel gear and luxe knitwear, offering wool garments in timeless styles. They use superfine premium Merino wool that’s Woolmark-certified."

"This shirt's wool fibers lock odor molecules within and only release them on washing — which means less washing and more wearing. That makes this the ultimate travel top."

Travel + Leisure
Fast Company
Conde Nast Traveller
Bustle
Refinery29

About our wool

  • Woolmark® certified Merino wool means you can expect the highest standards related to fiber content, performance, color fastness, and dimensional stability.
Woolmark

What people are saying

3.7
Rated 3.7 out of 5 stars
Based on 19 reviews
Slide 1 selected
Total 5 star reviews: 7 Total 4 star reviews: 4 Total 3 star reviews: 5 Total 2 star reviews: 2 Total 1 star reviews: 1
How did you find the fit?Rated -1.2 on a scale of minus 2 to 2
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19 reviews
  • HW
    Heather W.
    Verified Buyer
    Reviewing
    Women's Merino Thong Black / L
    I recommend this product
    What size did you buy? L
    Rated 5 out of 5 stars
    1/29/26
    Good fit

    Love the fabric — fits well

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
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  • MJ
    Merino J.
    Verified Buyer
    Reviewing
    Women's Merino Thong Sand / L
    I recommend this product
    Rated 4 out of 5 stars
    12/6/25
    Comfy, runs small

    Highly recommend!

    Purchased size L (5’6, 140, athletic build, denim size 27/28)

    How did you find the fit?Rated -1.0 on a scale of minus 2 to 2
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  • BW
    Beth W.
    Verified Buyer
    Reviewing
    Women's Merino Thong Sand / M
    I recommend this product
    Rated 4 out of 5 stars
    12/6/25
    Ok but not the most comfortable

    This underwear is ok, but it's thicker and wider than I expected, so not the most comfortable for me. I actually didn't realize it was Final Sale when purchasing. I buy underwear all the time at the Gap, Nordstrom, etc and you can try it on with other underwear on and return if it doesn't fit right. I find it misleading that Unbound doesn't mark Final Sale boldly before you purchase such an insanely expensive piece of underwear! I found out after the fact when I tried to return and read the fine print. Ah well, I kept it, it was fine, the fabric is good quality but it's not the most comfortable and it's really pricey. Had I thought to go read their FAQ fine print, I would not have chanced it.

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
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  • R
    Robin
    Verified Reviewer
    Reviewing
    Women's Merino Thong
    I do not recommend this product
    Rated 2 out of 5 stars
    11/19/25
    I like a merino thong but if the model with a 24" waist needs a medium

    There is no size my medium size body will actually fit. I am about the height of the model but with 31" waist and about 41" hips, if the model is 6" smaller all over I can't really imagine that even the XL will work, though I take a Medium in the other brand I wear. Who would wear a small if a 24" waist needs a medium?

    How did you find the fit?Rated -2.0 on a scale of minus 2 to 2
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  • A
    Amy
    Reviewing
    Women's Merino Thong Sand / M
    I recommend this product
    Rated 5 out of 5 stars
    11/17/25
    5 Stars

    Great Product!

    Was this helpful?
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