Women's Merino 150 Siren Bikini
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Women's Merino 150 Siren Bikini

$40.00

Color: Undyed

7 Colors Available

Size:

$40.00

IB103164000-1

Women's Merino 150 Siren Bikini

$40.00

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Complete The Look

Women's Merino 150 Siren Bikini

$40.00

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 - merino blend regulates body temperature in all weather conditions.
  • Style IB103164000
  • Product weight Small = 30 g / 1.06 oz
Fabric & Care
Fabric content

83% 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 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: 174cm / 5'9". Waist:66cm / 25". Maren is wearing size S.

Fit

Slim

What makes it a Siren?

The Siren is a lightweight next-to-skin layer. It’s crafted from 150gm merino jersey corespun fabric that’s lighter than most other fabrics we use, and is made with a snug, slim fit that works perfectly as a cosy piece beneath your other layers. Our Siren tees fit tighter than other tees in our range, just size up if you like a looser fit.

Delivery & Returns

Recently Viewed

Overall rating: 4.6365104 / 5 from 619 reviews.

AI Generated Review Summary

The Women's Merino 150 Siren Bikini is praised for its soft, breathable fabric and comfortable fit. Customers appreciate its quality and the feel of the material, though opinions on the cut and size vary.

Summary topics

  • Quality (6%): Customers appreciated the exceptional quality of these hiking briefs, as well as the softness of the fabric.
  • Fabric (6%): Customers raved about the fabric, describing it as super comfy, soft, and breathable.
  • Fit (22%): A significant amount of customers expressed satisfaction with the fit, stating it was good, perfect, and true to size.
  • Underwear Comfort (30%): A substantial number of customers pointed out that these underwear are incredibly comfortable and the best they've ever worn.
  • Color (6%): It was reported by customers that the color of the product is loved and considered beautiful by many.

Review topics: ["fit","size","weight","problem","quality","delivery","feel","value","design","looks","fabric","price","material","style","comfort","colour","wear","shape","weather","packs","moisture","medium","waist","works","durability","pattern","summer","underwear","cotton","comfy"].

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

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)

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)

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)

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"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)

Love the material but not the fit

"I'm a M/L for underwear and bought a large but they don't cover my crack when I'm sitting. Alternated between 2 pairs for a 3 week rafting trip and loved the material but wish fit my butt got quite annoying when rowing."

— Anonymous (3/5)

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)

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"Very nice soft fabric. Doesn’t lose elasticity like some other merino wool undies I’ve tried. Comfortable and helped wick moisture during workouts!"

— Anonymous (5/5)

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)

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)

Q&A