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  • New Arrivals

Icebreaker
Siren Tank Top - Women's

4.28 out of 5 stars
25 Reviews
Current price: $42.00 - $45.50 Original price: $70.00
Up to 40% off
Color:Passion

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Size Chart

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Icebreaker Siren Tank Top

Pull on the Icebreaker Women's Siren Tank Top when you want to stay cool on Indian-summer days, relax in the backyard hammock, or work on your slackline skills. Made with lightweight, breathable merino wool fabric that naturally resists odor buildup, the Siren Tank feels silky-light and doesn't get stinky when you work up a sweat. Thanks to its slim fit and feminine scoop neck, the Siren Tank layers nicely beneath a sweater or flannel during chilly evenings around the campfire.


Details

  • Item #ICE1404
Responsible Collection
Responsibly Sourced
Material
96% merino wool, 4% Lycra (150g/m²)
Fit
slim
Style
tank
Anti-Odor
natural attribute of merino wool
Manufacturer Warranty
limited lifetime

Overall Rating

4.5 based on 25 ratings

Review Summary

1 Stars - 2 reviews
2 Stars - 1 reviews
3 Stars - 2 reviews
4 Stars - 3 reviews
5 Stars - 17 reviews

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Selecting an option will reload the available reviews on the page
5 out of 5 stars

January 1, 2026

Great Tank Top

Got this tank as a gift for my wife for Christmas. She loves how it fits and feels. So much so, we ordered a couple more! The fabric feels like a quality product and helps keep her warm on chilly days.

Angel P
ExpertVoice.com

Originally reviewed on ExpertVoice.com

4 out of 5 stars

November 6, 2025

Great Undershirt!

I wear this item daily as a base layer. Bought my usual size, and it was a bit large (only reason for detracting a star).

Anonymous
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

October 12, 2025

Icebreaker is the best

My go to under layer year round all day every day. It manages heat, cold, moisture. I wear the Marino 150 under my ski gear at -40F, in the summer to bike in, and even as my sleep wear. I have at least 30 pieces in this collection.

Coleman C
ExpertVoice.com

Originally reviewed on ExpertVoice.com

2 out of 5 stars

September 5, 2025

Wore a couple times but didn’t like that the fabric is an itchy and see-through. Usually wear a small but this was tight so would recommend sizing up.

Emilie U
ExpertVoice.com

Originally reviewed on ExpertVoice.com

5 out of 5 stars

September 2, 2025

Great breathable underlayer

Highly recommend this tank top. I wear it under layers, or as a standalone shirt. It's not see through, very breathable, quick dry and doesn't stink. I'm 5'5 and 135 lbs, I got size medium.

Carly S
ExpertVoice.com

Originally reviewed on ExpertVoice.com

1 out of 5 stars

June 7, 2025

Size is misleading

[This review was collected as part of a promotion.] My size medium fits like an extra small. Really disappointed.

D
icebreaker.com

Originally reviewed on icebreaker.com

5 out of 5 stars

April 25, 2025

One of my favorite icebreaker items

I have one of these Siren Tanks almost all the colors. I wear one of them as an undershirt under sweaters and sweatshirts almost every day.

Emily
icebreaker.com

Originally reviewed on icebreaker.com

5 out of 5 stars

April 18, 2025

Great

[This review was collected as part of a promotion.] This a great tank. It's thin fabric though, so I bet some colors would be see through and it really is better for layering under another piece. I sized up to a large from a s-m for a looser fit and it was the right choice. It drapes and doesn't hug. I have a broad shoulders and a big rib cage for my size.

Jo
icebreaker.com

Originally reviewed on icebreaker.com

5 out of 5 stars

April 11, 2025

One of many Siren tanks

[This review was collected as part of a promotion.] I normally wear these tanks tops under another shirt. I often need just a little bit more than tshirt at my office, and this is perfect.

253Girl
icebreaker.com

Originally reviewed on icebreaker.com

4 out of 5 stars

April 3, 2025

I wish it was 100% merino

[This review was collected as part of a promotion.] I have a few of these tank tops and wear them to the gym. They work great. Maybe the straps are slightly too long (on the XS size). I wish they were 100% merino wool; they would be perfect then. Unfortunately, the threads aren't cotton! Please offer more colors!

Xenia
icebreaker.com

Originally reviewed on icebreaker.com