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Women's Merino 150 Siren Thong
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Women's Merino 150 Siren Thong

$22.75

$35.00

This item's price has been updated recently to ensure you get the best value.

Last priced at $35.00 - 07/2026

-35%

Color: Lichen

7 Colors Available

Size:

$22.75

$35.00

This item's price has been updated recently to ensure you get the best value.

Last priced at $35.00 - 07/2026

-35%

IB103027A74-1

Women's Merino 150 Siren Thong

$22.75

$35.00

This item's price has been updated recently to ensure you get the best value.

Last priced at $35.00 - 07/2026

-35%

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Complete The Look

Women's Merino 150 Siren Thong

$22.75

$35.00

This item's price has been updated recently to ensure you get the best value.

Last priced at $35.00 - 07/2026

-35%

Details

A stretchy, ultra-comfortable thong for minimalist comfort, the Siren Thong features our corespun merino wool blend fabric for durable, super-soft performance during active or casual use.
Features & Details
  • Merino Corespun - merino blend regulates body temperature in all weather conditions.
  • Style IB103027A74
  • Product weight Small= 26 g / 0.91 oz
Fabric & Care
Fabric content

83% Merino Wool/ 12% Nylon/ 5% Elastane, Exclusive of decoration

Warmth system: 150
  1. 75
  2. 150
  3. 200
  4. 260
  5. 300
  6. 460+
Merino fiber micron: 18.9µ
  1. 15.5µ
  2. 16.75µ
  3. 18.9
  4. 19.25µ
  5. 20.5µ
  6. 21.75µ
  7. 23.0µ
  8. 25.5µ
Care

Machine wash cold gentle cycle. Wash with like colors. Do not use softeners. Do not bleach. Do not tumble dry. Line dry in shade. Cool iron. Do not iron print. Do not iron decoration. Do not dry clean.

Fit & Sizing

Model measurements

Height: 180cm / 5'10". Waist: 59cm / 24". Jess is wearing size S.

Fit

Slim

What is Merino?
Merino is super lightweight, soft, non-itchy, non-clammy, warm in the cold and cool in the heat, and has a miraculous ability to resist odour. Because it was made in the mountains rather than in a petrochemical laboratory. Merino wool fibre is naturally renewable, recyclable and biodegradable
Delivery & Returns

Recently Viewed

Overall rating: 4.747692 / 5 from 325 reviews.

AI Generated Review Summary

The Women's Merino 150 Siren Thong is praised for its well-made cut, vibrant colors, comfortable design, and high-quality fabric. Customers appreciate its perfect fit, true-to-size nature, and the soft feel that makes it suitable for all-day wear. However, some customers noted that the gusset is small.

Summary topics

  • Cut (3%): It was observed by customers that the cut of the product is very well made and perfect.
  • Color (6%): Customers expressed appreciation for the variety and vibrancy of the colors available for the product.
  • Design (4%): Customers keep praising the comfortable design and good quality of these products for a lot of money.
  • Fabric (5%): It was highlighted by customers that the fabric of the product is perfect and comfortable for everyday use.
  • Fit (23%): A significant amount of customers expressed satisfaction with the fit, stating that it was comfortable and fits perfectly.

Review topics: ["size","fit","fabric","problem","material","quality","feel","colour","design","looks","comfort","packs","wear","band","medium","pants","weather","speed","waist","underwear","style","texture","moisture","thong","buy","pair","tags","wool","liners","cut"].

Review highlights

  • "The stretch/cling ratio is perfect and the fabric feels amazing." — SL11
  • "My wife won't wear anything else anymore, she loves the feel, fit and quality!" — Athean
  • "The fit was right- no pinching, no digging in, no moving around during the day." — AnotherHappyHiker

Reviews

Great Product

"Very comfortable for exercise and daily use. I will be purchasing more!"

— Becca (5/5)

Great undies!

"As I switch from synthetic to natural fibers I have tried many brands for underwear and Icebreaker is a favorite. True to size . These are low rise for sure but I like the fit."

— Anonymous (5/5)

Perfect, please don’t change these.

"These are perfect. I use these for running and skiing, the cut is excellent and the merino obviously helps with all day sports comfort."

— Angela (5/5)

Love these! I always wait

"Love these! I always wait for a sale because they're pricey but this is my fourth pair over the last 2-3 years and they're all still going strong."

— Lauren M. (5/5)

The rise of the underwear

"The rise of the underwear is low. Think early two thousands jeans. Otherwise pretty comfortable if you don’t try to give yourself a wedgie."

— Starlight K. (3/5)

Great thong that doesn't dig

"Great thong that doesn't dig in"

— Olga G. (5/5)

So comfortable!

"I've tried a different brand of merino underwear and this one was much more comfortable. Thin, breathable, with a higher percentage of merino. I'm usually an XS but purchased a small based on reviews. It fits well, but I'm wondering if I could have tried an XS. Either way, I love it! Would love to see boy shorts in the beige colour also. I agree that the gusset could be longer."

— AK (4/5)

Highly recommended

"I brought a couple pairs of these into the backcountry for nearly two weeks, they were insanely comfortable during strenuous hiking and a quick rinse refreshed them so I could wear again, and they continued to smell and feel fresh the whole trip!"

— Jen (5/5)

Looses Shape

"My partner really wanted to like this product; however Icebreaker's Siren series is prone to losing its shape and thinning out. This is annoying considering the price and ruins the comfort rating. I'm not sure how long they will last. On the good side they were initially comfortable."

— Anonymous (3/5)

A thong so great you will forget you're wearing it

"I'm a yoga teacher and I move a lot. This thong makes me forget I'm wearing underwear. Ha! That's a good thing. I love that it's merino. The band is good it lays flat and doesn't pinch. There is no scratchy tag! Thank you!! The thong is not itchy and it doesn't slip slide or bunch. It washes easily in the sink or washer on cold and dries within a day on a dryer rack. Next to going commando these are the next best thing. Expensive? Yes. And they are truly worth it. Icebreaker is the best. But I've already bought 3. One more and I'll be able to rotate throughout the week with no problem."

— Anonymous (5/5)

Q&A