Siren Tank Top - Women's
Size:
Quantity
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
Reviews
Q&A
Overall Rating
4.5 based on 25 ratings
Review Summary
View
Selecting an option will reload the available reviews on the pageJanuary 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.

Originally reviewed on ExpertVoice.com
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).

Originally reviewed on ExpertVoice.com
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.

Originally reviewed on ExpertVoice.com
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.

Originally reviewed on ExpertVoice.com
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.

Originally reviewed on ExpertVoice.com
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.
Originally reviewed on icebreaker.com
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.
Originally reviewed on icebreaker.com
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.
Originally reviewed on icebreaker.com
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.
Originally reviewed on icebreaker.com
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!
Originally reviewed on icebreaker.com
Need Expert Advice?
Our Gearheads Can Help