Women's Merino 150 Siren Bikini

$35.00

Details

Soft and stretchy merino wool underwear with a modern slim fit, the Siren Bikini features our corespun fabric that’s incredibly soft and durable.

Features & Details
  • Merino Corespun - merino blend regulates body temperature in all weather conditions.
  • Style IB103164401
  • Product weight Small= 32 g / 1.12 oz

Good for:

  • Everyday
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

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*., Naturally odor-resistant
Delivery & Returns

Recently Viewed

Overall rating: 4.642738 / 5 from 599 reviews.

AI Generated Review Summary

The Women's Merino 150 Siren Bikini is praised for its soft, breathable, and durable fabric. Customers appreciate its good quality and stylish appearance. However, opinions on sizing and coverage vary among users.

Summary topics

  • Fabric Comfort: 6%
  • Product Quality: 6%
  • Color Variety: 6%
  • Product Fit: 22%
  • Product Appearance: 3%

Review topics: ["fit","size","weather","coverage","quality","material","looks","colour","feel","shape","underwear","undies","buy","cut","stay","wool","bottom","side","space","breathability","fan","waistband","briefs"].

Review highlights

  • "Fabric is not itchy and the fawn heather colour is a good nude shade for fair/medium skin tones."NYLondon
  • "This underwear fits so well and the material is perfect for all occasions."Mm456
  • "Loved the Fawn Heather color and the fabric is soft with good stretch."1234b

Reviews

So comfortable and breathable

"I procrastinated “splurging”on these for the longest time and they really are worth it. Great for traveling and working out, and they’re sustainably made."

Al (5/5)

These are awful. I have

"These are awful. I have probably a dozen pairs of Icebreaker bikini & hipkini briefs. I love their breathability, but have always been frustrated by how quickly they develop holes. This is the worst pair I've had by far (passion color, 150 merino). They developed a number of holes on the first wash."

Lina H. (1/5)

Favourtie underwear

"This is my favourite underwear. I love that the two pack offers them at a bit of a lower price."

Ashley (5/5)

I purchased the Women’s Merino

"I purchased the Women’s Merino 150 Siren Bikini for my wife, and she absolutely loves them. The merino wool is incredibly soft and breathable—nothing like traditional wool that can feel itchy. They’re lightweight, comfortable, and perfect for everyday wear, whether at home, traveling, or layering for outdoor adventures. She especially appreciates how well they regulate temperature and wick moisture, keeping things fresh throughout the day. The fit is flattering and stays in place without digging in or bunching up. They also wash and wear really well, maintaining their shape and softness over time. Icebreaker has really mastered comfort and practicality with this design. Highly recommended for anyone looking for premium-quality, natural-fiber underwear that feels as good as it performs."

Joshua N. (5/5)

Very comfortable

"Most comfortable underwear ever."

Ashley (5/5)

If you haven't slipped into

"If you haven't slipped into something this comfortable yet, you are missing out. These are a game changer in life and on the adventure trail."

Julia C. (5/5)

Best underwear I own

"I love these. They are so breathable and comfortable. I've owned several pairs for over 2 years and they are still like brand new. Machine wash and hang to dry (although i have dried them a few times without skinage, piling or wear). I wear size M and size 30 jeans."

Nicole F. (5/5)

Comfortable

"They fit well and are comfortable."

Fion T. (5/5)

My favorite briefs!

"My favorite briefs!"

Ingrid K. (5/5)

Only underwear I use

"Only underwear I use"

Julie M. (5/5)

Q&A