Siren Bra - Women's
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Why We Like The icebreaker Siren Bra
From cragging to lounging, the icebreaker Siren Bra gives us the soft, breathable coverage of merino wool, the durability of nylon, and the support of spandex, ensuring lasting comfort no matter what the day holds.
Details
- Smooth, light bra for adventures on mountain and in town
- Merino blend thermoregulates, manages moisture, and resists odors
- Touch of stretch and flatlock seams for low-friction movement
- Adjustable shoulder straps offer a customized fit
- Item #ICEZ6P7
- Material
- Merino Corespun (83% merino wool, 12% nylon, 5% spandex)
- Support
- low-impact
- Anti-Odor
- natural attribute of merino wool
- Manufacturer Warranty
- 1 year
- Activity
- casual, hiking, climbing, training
Reviews
Q&A
What do you think about this product?
Overall Rating
4.5 based on 97 ratings
Review Summary
Fits Slightly Small
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.Customer Images
Here's what customers have to say
The product is generally well-received, with many customers describing it as comfortable, supportive, and suitable for everyday and active wear. While some noted issues with the fit or sizing, the majority of reviewers are very satisfied and would purchase the item again. The product appears to be a high-quality option that meets the needs of most customers.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageJuly 4, 2025
Great bra- terrible tag
According to reddit "a bra that fits" I am between a 32 C/D and a 34 B/C. I ordered this in L because I have an older icebreaker sports bra and even in L I find the band a bit tight (I would typically order M in bras). This one is a slightly better fit. I don't think I could go up to XL because the cups would be too big. I find this bra a bit itchy when I put it on, but then I forget about it unless I get really sweaty- then the band can be a bit irritating. But the tag is AWFUL. I spent a solid 20 mins removing it. I have a small hole in the fabric now, since the tag is sewn in, but the hole is in the second inner layer so it's not a huge deal. I would purchase this bra again solely because it's the best wool option I've found in terms of a daily bra with padding. But, icebreaker, please do something about the egregious tag.
Originally reviewed on icebreaker.com
June 27, 2025
It's just OK
I really did a lot of looking before I invested in a merino bra. I decided on this style because I didn't want a uniboob look for my 36C. The fabric is really nice and I like the band which gave some support. My issue is ALL THE TAGS! Who puts scratchy tags in a bra like this? I cut them out and now have a scratchy edge left behind. Also, the top of the triangle (cup) is a bit wrinkly (I can now see that in the photos on the website) and it means less than a smooth look.
Originally reviewed on icebreaker.com
June 24, 2025
The straps hurt and dig in
This might be the first and only ice breaker product I don't love. I bought a medium, I'm a b cup. The bra fits, but the super skinny straps dig in and hurt! If it had wider straps, I'd love it. Now I know what larger chested women mean when they say straps can dig in. This is the only time I've ever had this problem. I love the rest of it, but fobt wear it because it hurts.
Originally reviewed on icebreaker.com
June 23, 2025
Wool is amazing!!
Wool is the only material you should have touching your skin and icebreaker makes some amazing wool clothes. The best!!
Originally reviewed on ExpertVoice.com
June 21, 2025
Almost perfect for me
[This review was collected as part of a promotion.] This is my everyday go to bra but I do wish for a few changes. The thin straps cut into my shoulders by the end of the day. I wish these would be a bit thicker to avoid that. One of the reasons I come back to this bra again and again is the removable padding for modesty. Only complaint is I wish these pad was made of wool as well. Almost there...
Originally reviewed on icebreaker.com
June 18, 2025
so comfy and no stink !
[This review was collected as part of a promotion.] comfortable to wear and can wear several times without washing without any odor. The material is soft and not itchy ! This is my second siren bra as I liked the first one so much.
Originally reviewed on icebreaker.com
June 17, 2025
My third one
[This review was collected as part of a promotion.] I love this bra...low cut so it doesn't show with lower cut tops, modesty pads (I won't buy a bra without them), no hooks to deal with, and most of all...comfortable! I should take a size S according to the cart (33" bust measurement, A-cup) but size up to a M and it fits well. Only drawback is the ridiculous tags in the side seam.
Originally reviewed on icebreaker.com
June 14, 2025
Love Love Love This Bra!!!!!
[This review was collected as part of a promotion.] No snaps or buckles - slip it on and off you go! Fantastic fit and feel. Amazingly sexy!
Originally reviewed on icebreaker.com
June 14, 2025
Love this bra!
[This review was collected as part of a promotion.] I bought this bra because I need one to wear on my international trip and o wore it every day. It was great for hiking, mountain biking and sightseeing. Very comfortable.
Originally reviewed on icebreaker.com
June 14, 2025
Almost, not quite
Fit TTS, 34A = small. I don't like bra pads so I appreciate that they are removable. If the straps were convertible in back and I could make it cross back, this would improve the fit, alleviate side gaps, create lift, allow me to wear it with tank tops, and be the perfect bra. Slightly odd fit.
Originally reviewed on icebreaker.com
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