Find Your Perfect Base Layer.
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"I purchased a couple for my mother's birthday 5+ years ago and she mentioned needing to get some more. She wears them almost daily under t-shirts or sweaters."
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$69.99
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$69.99
$99.99
This item's price has been updated recently to ensure you get the best value.
Dernier prix $99.99 -
-30% Off
The soft and stretchy Merino 150 Siren Tank is a sleek, stylish and versatile layering piece for any day of the year. Soft and comfortable thanks to its naturally odour-resistant Merino Corespun fabric, the Siren features a scoop neck and slim, flattering fit for feminine style.
Good for:

83% Merino Wool/ 12% Polyamide/ 5% Elastane Exclusive of decoration
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.
Model measurements
Height: 179cm / 5'10". Waist: 62cm / 24". Anya is wearing size S.
Key product measurements
Height: 61.9cm (Based on size S); Width:41.5cm (bottom opening width, size S)
Regular Fit
Slim
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.
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Merino wool neutralizes unpleasant odors by absorbing odour molecules into its fibers, making them less detectable by the human nose.
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.
icebreaker merino wool garments undergo special anti-shrinkage treatment, helping to resist deformation and pilling.
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.
Overall rating: 4.68429 / 5 from 662 reviews.
The Women's Merino 150 Siren Tank is a highly praised tank top for everyday layering, known for its soft, stretchy fabric and sleek design. Customers appreciate its great fit, vibrant color, and excellent quality, making it a perfect base layer for comfort and style.
Review topics: ["fit","size","straps","length","weight","weather","quality","problem","fabric","material","looks","coverage","wear","delivery","design","value","feel","comfort","top","colour","layer","warmth","style","packs","shape","sleeves","winter","price","medium","body"].
"I purchased a couple for my mother's birthday 5+ years ago and she mentioned needing to get some more. She wears them almost daily under t-shirts or sweaters."
— merino r. (5/5)
"So comfortable all year round in multiple climates. The siren fabric is wonderful for breathability - it washes easy and dries quickly. I love all my siren pieces!"
— Heather S. (5/5)
"Super great base layer or on it's own in the warm weather."
— Caitlin N. (5/5)
"Love the feel, shape and color ❣️"
— Eva S. (5/5)
"It fits well and feels good. I am also glad that I do not have to wash it every day I ware it."
— Penny L. (4/5)
"Great except it’s not t cut straight. You can tell when you fold the camisole. This is very much like most of the tops at icebreaker. Why?"
— Joan R. (4/5)
"Great fit - wish you had a higher wool content as well like 200 or 250!"
— Claire R. (5/5)
"I really like this tank for layering. Wish there were more neutral colors."
— Irene (5/5)
"Love these. I wear them year round both cycling & under shirts & sweaters in winter"
— Linda B. (5/5)
"My favorite top. I have 4 and wear one almost daily."
— Marian C. (5/5)
Find the size that fits you best based on people just like you.
Use the chart below to determine your size. If you’re between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit. If your measurements for chest and waist correspond to two different sizes, order the size indicated by your chest measurement for tops and your hip measurement for pants.
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Bust | 30-32 | 32-34 | 34-37 | 37-40 | 40-42 |
| Arm length | 30.25-30.5 | 30.5-30.75 | 30.75-31 | 31-31.25 | 31.25-31.5 |
| Waist | 24-26 | 26-28 | 28-30 | 30-32 | 32-35 |
| Hips | 34-36 | 36-38 | 38-40 | 40-42 | 42-44 |
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Bust | 76-82 | 82-88 | 88-94 | 94-100 | 100-107 |
| Arm length | 77-77.5 | 77.5-78 | 78-78.5 | 78.5-79 | 79-79.5 |
| Waist | 58-64 | 64-70 | 70-76 | 76-82 | 82-89 |
| Hips | 84-90 | 90-96 | 96-102 | 102-107 | 107-113 |
Our three different fits - slim, regular, and relaxed - ensure that when worn together, layers move and breathe like a single garment.
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