Thong Underwear
Thong Underwear
Thong Underwear
Thong Underwear
Thong Underwear
Thong Underwear
Thong Underwear
Thong Underwear
Thong Underwear
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Thong Underwear

$32.00
$32.00
Save $-32.00 Sold out
Shipping calculated at checkout.
Color: Indigo
Size: X-LARGE
In stock
  • Temperature regulating
  • Incredibly Soft
  • Machine Washable
Fabric
92% Australian Merino Wool 8% Elastane
  • 18.5 Microns
  • 260 GSM
  • Non-Mulesed Wool
Features & Details
  • Don't like underwear lines? We made a Thong just for you.
  • No elastic
  • Single layer, with a double layer gusset
  • Why Merino wool underwear? Wicks away any moisture, quick drying, breathable, odor & stain resistant, & hypoallergenic
  • UNDERWEAR ARE FINAL SALE, NO RETURNS
  • No harmful chemicals used in the dying process
  • Woolmark® certified Merino wool, ensuring it meets strict performance and sustainability standards
Care
  • Machine wash on delicate cycle with warm/cool water.
  • Mild soap. Do not use bleach.
  • Wool wash is recommended, Eucalan
  • Hang dry, best to lay flat to help retain shape.


Note: Merino wool is naturally odor & stain resistant
  • Ethically Made in Vancouver, Canada
  • Free Shipping Over $200
  • Easy 30-Day Returns

Comfort Meets Sustainability

Merino wool is a renewable resource, making it one of the most sustainable fabrics available. With access to grass and water, their fleece naturally regenerates each year, providing a continuous and sustainable source.

Learn More

Feel good about dressing your family in Simply Merino

Temperature Regulating

Merino wool naturally insulates in the cold by trapping air and keeps you cool in the heat by absorbing and releasing moisture.

Incredibly Soft

Merino wool is soft because its ultra-fine fibers—typically 18–24 microns—are smoother and gentler against the skin than regular wool.

Machine Washable

Merino wool’s naturally crimped fibers and smooth surface help it retain shape and resist shrinking, especially when washed gently with cool water and a wool-safe detergent.

Wicks Away Moisture

Merino wool keeps you dry by wicking moisture away from your skin and absorbing it into the fibers without feeling wet.

Hypoallergenic

Merino wool naturally wicks moisture and resists bacteria and dust mites, helping reduce allergen buildup.

Naturally Fire Resistant

Merino wool is naturally fire-resistant, thanks to its keratin-rich fibers and moisture content, which cause it to smolder rather than ignite.

Durable

Merino wool is durable because its fine, strong fibers are naturally elastic, allowing them to bend without breaking.

Biodegradable

Merino wool is fully biodegradable—cut it into small pieces and compost in soil, where it naturally breaks down within 12 months and enriches the earth.

LEARN ABOUT MERINO WOOL

Customer Reviews

Based on 14 reviews
86%
(12)
14%
(2)
0%
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B
B. C.
Perfect

I’m really picky about thong underwear, understandably. I have to be able to forget that I’m wearing them. These do the trick, and they are wool so are breathable unlike synthetic material. I’ll be ordering more.

S
Shannon
Natural Undies

Was looking for a natural textile and am so happy with the Simply Merino thong underwear! Every lady should be wearing natural products instead of plastic or petroleum based textiles!

L
Lauren Alexis
The best Thong underwear ever

Like the other reviews I read before purchasing I now plan on only buying future underwear from SImply Merino. Everything is so comfortable and well made! I am very picky about my thongs and find many big chain brands make them in strange shapes / coverage but my simply merino thongs are a perfect fit!

A
Ashley L
Wonderful!

Stay put, fit well. So comfortable!

R
Rebecca
Thong

I am afraid to write this in case they sell out for good and I can never order more again! 🤣 haha I am going to be completely honest. I hated and I mean hated thongs before I tried these ones from simply merino! I refused to wear them unless absolutely necessary (ie the regular underwear line would show through the pants). But wow I have to admit I understand the appeal of thongs now. I forget I am wearing these! No chaffing or picking it out when it’s wedged its way too far up because it doesn’t happen. They sit and stay in place. Super comfortable, no seams in the wrong places (front or back). So so amazing! Thank you!

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Frequently Asked Questions

How should I store my wool?

If you are not wearing your wool regularly, we recommend storing it in a cedar chest or in a sealed Ziploc bag.

How should I wash my wool?

Always wash your wool on a delicate cycle with a gentle detergent. Never use bleach.

How do I know what size to order?

Each product page contains a Size Chart to help you select the correct size based on body measurements. If you need any additional sizing information, please reach out to our customer service team. We know that online shopping can sometimes be frustrating, and we are always here to help!

Do moths really eat wool?

Moth and other bugs do like to nibble on most natural fibers, wool included. If you suspect you have moths, we recommend washing your wool, air dry, then freeze to kill any eggs that may be present. Storing your wool properly will prevent damage from bugs.

When will an out-of-stock item be available?

Our Fall/Winter collection gets fully restocked in September, while our Spring/Summer collection restocks in April. Small restocks are done throughout the year. Restock notifications are available through our website by selecting the size and colour you are interested in and then providing your email address.