Women’s Merino 150 Siren Bra
  1. Home
  2. Women's Underwear
  3. Women’s Merino 150 Siren Bra

Women’s Merino 150 Siren Bra

$71.99

$89.99

-20% off

Gifting Deals

Color: Praline
Size:
See More Details
IB104708347-1

Women’s Merino 150 Siren Bra

$71.99

$89.99

-20% off

Kind reminder: You are viewing this product page on the New Zealand site, with prices shown in NZD.

Details

The Merino 150 Siren Bra is lightly supportive, comfortable and soft next to your skin for easy everyday layering. 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
  • Flatlock seams to help reduce friction
  • Low support
  • Adjustable straps
  • Removable Cups
  • Layer Underwear
  • Style IB104708347
  • Product weight Medium = 172 g / 6.06 oz

Good for:

  • Running
  • Hiking
  • Everyday
Fabric & care
Fabric content

83% Merino Wool, 12% Polyamide, 5% Elastane Exclusive Of Decoration And 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 Softener. Do Not Bleach. Do Not Tumble Dry. Line Dry In Shade. Warm Iron. Do Not Iron Print And Accessories. Do Not Dry Clean.

Fit & sizing

Model measurements

Height: 177cm / 5'10". Waist: 57cm / 22". Daseul is wearing size S.

Key product measurements

Height: 4.9cm (front height, based on size S); Width:29.8cm (bottom opening 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

ENJOY EXCLUSIVE REWARDS

Join nature.rewards, icebreaker’s loyalty program.
Unlock thoughtful gifts, free delivery, and members-only discounts all year long.

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: 4.4481926 / 5 from 1245 reviews.

AI Generated Review Summary

The Women's Merino 150 Siren Bra is praised for its slim, modern fit and durable comfort. Customers appreciate its soft, breathable fabric and great overall feel. However, opinions vary on the padding, straps, band, and cups, with some finding them lacking or uncomfortable.

Summary topics

  • Size Accuracy (7%): In general, customers mentioned that the size of the product was true to size and well-made.
  • Fabric Quality (8%): Customers expressed satisfaction with the fabric, describing it as soft, breathable, and well-made.
  • Overall Support (12%): Opinions vary on the support provided by this bra, with some finding it lacking while others praise its comfort and fit.
  • Overall Feel (6%): It was observed by customers that the bra feels great on the skin and is comfortable to wear.
  • Overall Fit (25%): Many customers brought up that the fit of the bra is great, comfortable, and perfect for everyday wear.

Review topics: [fit, size, weight, price, delivery, quality, construction, problem, design, feel, material, colour, looks, band, fabric, bra, straps, padding, wear, support, comfort, shape, medium, cups, weather, style, top, buy, model, layer].

Review highlights

  • "Straps, cups and band are all very soft and comfortable." — Kayaker76
  • "Great comforting fit, with good support and soft feel on the skin" — WooleyComfort
  • "The cups are perfect, the fit feels supportive but with a natural feel." — DerbyHills

Reviews

Inconsistent Quality

"Purchased two of these bras in May of 2026 and have worn each no more than ten times. I've washed by hand and hung to dry. Already, the elastic band is showing signs of wear with the elastic kinda breaking apart in the gray one (black one looks fine). Very disappointed in the quality. Bought a medium and I am 4'11"/110 lbs."

— Liz (2/5)

Very comfortable from the get go

"The sizing chart made getting the right fit easy. My recommended size medium is snug under the bust without being tight and I forget I am wearing it. I like the front positioned strap adjustment. The plunge style does offer a challenge in keeping things in place when active. I took away one star for this."

— AJD (4/5)

A Merino bra that delivers in all areas!

"Finding a merino bra that has a good fit and that is also comfortable has been a challenge but this 150 Siren bra delivers well in all areas. The fit is nice with good coverage and adjustable shoulder straps. It has low/medium support which is what I was looking for in this type of bra. My only suggestion where it has room for improvement is the removable pads. I do like the option to have pads that are removable, however the pads that come with this bra have an awkward texture/shape to me that doesn’t give a smooth look. So I will most likely be wearing without the pads or replacing with a different set of pads. Overall I’m very pleased with this bra and would recommend."

— Valerie (5/5)

So nice for ibtc members

"I love it but it’s not quite as comfy as the siren cami. I absolutely adore the built in cups-they actually work really well snd stay put. Overall its not super supportive but good for the ibtc. Wish there were more bold colors. I am ordering 2 more."

— Michelle R. (5/5)

Great product

"Seamless and comfortable wear, perfect size, nice material, breathing and soft."

— Baiba (5/5)

Love it

"I love it ! It is very comfortable.. i already had black ones and they stay in great condition as time goes by. Machine wash and hang up to dry is easy maintenance."

— Slime (5/5)

Une base qui ne se démode pas

"Toujours aussi confortable. Les sous vêtements mérinos sont une première première couche parfaite été comme hiver. Le choix de couleurs varie selon les saisons, parfait pour ajouter à ma collection."

— M (5/5)

Comfy

"Great for hot weather and hot flashes. Pack for recent road trip. Dried fast. Nude color great for white tops. Very comfy."

— TreeYoga (5/5)

Great everyday bra

"I have several of these bras and they are great! I’m a huge fan of wool and they are my every day work bras. Fairly comfortable and low profile, don’t make me feel smashed like sports bras. You can wear them multiple times between washes. I bought this one because all my others were black and needed a nude color under a bridesmaids dress."

— Hannah H. (5/5)

Comfy and light for hot weather

"Perfect nude color for wearing under white clothing. All the benefits of merino. Plan to wear to hot humid locations. Enough support for yoga, day hikes."

— Tree Y. (5/5)

Q&A