Women’s Merino 150 Siren Bikini Brief
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Women’s Merino 150 Siren Bikini Brief

$43.99

$54.99

-20% off

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Color: Black
Size:
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IB103164001-1

Women’s Merino 150 Siren Bikini Brief

$43.99

$54.99

-20% off

Kind reminder: You are viewing this product page on the Australia site, with prices shown in AUD.

Details

The Merino 150 Siren Bikini is stretchy and soft next to your skin, a slim-fit underwear for go-to everyday comfort. The Siren's lightweight Merino Corespun fabric is naturally odour resistant and helps regulates body temperature in all weather conditions.
Features & details
  • Merino Corespun - Blend of soft merino wool and Corespun that is breathable and delivers all day comfort
  • Underwear brief only. Top shown in imagery is not included.
  • Layer Underwear
  • Style IB103164001
  • Product weight Small= 32 g / 1.12 oz

Good for:

  • Hiking
  • Snow Sports
  • Everyday
  • Running
Fabric & care
Fabric content

83% Merino Wool, 12% Polyamide, 5% Elastane; Exclusive Of Elastic

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 warm. Wash inside out with like colors. Do not use softeners. Fasten all closures to wash and dry. Do not bleach. Do not tumble dry. Line dry in shade. Warm iron. Do not iron print, trims and accessories. Do not dry clean.

Fit & sizing

Model measurements

Height: 178cm / 5'10". Waist: 61cm / 24". April is wearing size S.

Key product measurements

Height: 24.2cm (based on size S); Width: 33.0cm (waist width, 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*., Naturally odor-resistant
  • Naturally odor-resistant
  • No-itch comfort
  • Regulates body temperature
Delivery & Returns

Delivery

  • Free standard delivery on orders over $99
  • Delivery in 3-5 business days (Mon–Fri, excluding public holidays)

Returns

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How to tear off the labels?

Why choose icebreaker merino wool?

Natural odor resistance
Natural odor resistance

Merino wool neutralizes unpleasant odors by absorbing odour molecules into its fibers, making them less detectable by the human nose.

Moisture management
Moisture management

Merino fibers efficiently manage moisture, absorbing it from your skin and releasing it into the atmosphere. It can absorb up to 35% of its weight in water without feeling wet.

Machine washable
Machine washable

icebreaker merino wool garments undergo special anti-shrinkage treatment, helping to resist deformation and pilling.

Temperature regulation
Temperature regulation

The thermo-regulation properties of merino wool adapt to your body and external conditions, so you can stay warm in the cold and cool in the heat.

Recently viewed

Overall rating: 4.629382 / 5 from 599 reviews.

AI Generated Review Summary

The Women’s Merino 150 Siren Bikini is praised for its great feel, soft and comfortable fabric, and excellent fit. Customers appreciate the good quality and vibrant colors, though there are mixed opinions on coverage and size.

Summary topics

  • Feel (7%): Customers expressed appreciation for the great feel of the product, which was mentioned multiple times in the reviews.
  • Fabric (6%): It was highlighted by customers that the fabric is soft, comfortable, and of good quality, making it worth the effort.
  • Fit (22%): Many customers raved about the fit of the product, describing it as perfect, great, and excellent.
  • Cut (5%): Customers expressed satisfaction with the cut, as it was described as perfect, great, and excellent.
  • Quality (6%): Customers raved about the good quality of the product, with many praising its durability and comfort.

Review topics: [fit, size, weight, price, delivery, quality, design, colour, feel, material, looks, underwear, fabric, style, comfort, briefs, shape, wear, moisture, cut, weather, medium, model, buy, band, cotton, waist, pair, summer, durability].

Review highlights

  • "Fabric is not itchy and the fawn heather colour is a good nude shade for fair/medium skin tones." — NYLondon
  • "Perfect fit and great quality underwear." — Mira V.
  • "This underwear fits so well and the material is perfect for all occasions." — Mm456

Reviews

Critizo

"Liked the better undercup band glad listened to my previous complaint band would crumple upon wearing causing discomfort vs remaining flat & serve function as meant to b support band Glad n new stick no ussue"

— M. Y. (5/5)

Love these and they wash so well

"Icebreaker make fabulous underwear will never go back to cotton. Love the colour, hoping to get a bra to match"

— Zozo (5/5)

Love the shape

"Fantastic underwear, love the colours 👌 Thank you Icebreaker!"

— Zozo (5/5)

Such a great product

"Love the shape, the quality is fantastic. The green is such a lovely green. Really muted and soft"

— Zozz (5/5)

null

"The wool is nice but I still get weggies. I try to use these on high activity days where I’m going to sweat a lot- gym skiiing etc…They are breathable I just prefer a different style."

— Anonymous (4/5)

Underwear Worth Treating Yourself To

"Once I went marino and specifically Icebreakers I could never go back. There's no comparison to thick swampy cotton underwear living in the south or sweat/stink holding synthetics (and messing with your lady biome) after long days running on the trail. Seriously these fit great for me (size: sm 5'3 120lbs athletic build-runner) stay in place and never smell. The only reason I give them 4 stars is because I have been buying these for a decade now and in recent years they do seem to wear thin faster."

— Anonymous (4/5)

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)

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)

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)

Q&A

Are these just bottoms or bra and panty?
Hi Luella, this is just the bottom. The matching bra can be found here: https://na.icebreaker.com/en-us/products/merino-150-siren-bra-ib104708001