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 64 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
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Selecting an option will reload the available reviews on the pageFebruary 17, 2025
Size up!
[This review was collected as part of a promotion.] Solid bralette, but it runs small! I'm normally a 36A, or a size S in most sports bras, but I listened to the reviews and ordered a Med. So glad I did! The band is even a bit tight!
Originally reviewed on icebreaker.com
February 15, 2025
I love these bras!
[This review was collected as part of a promotion.] Never get stinky, great fit, look cute, no itch! I know it will stretch out as my other one did. I'm technically an XL for rib girth but an A cup
Originally reviewed on icebreaker.com
February 14, 2025
Merino undergarments for the win!
[This review was collected as part of a promotion.] Great support and comfort for everyday wear or with any activity.
Originally reviewed on icebreaker.com
February 7, 2025
Love it
[This review was collected as part of a promotion.] I absolutely love this bra. I did order a size up (S) from my usual (XS) and the band fits perfectly (for a 32B). It's super breathable, not itchy, and has a nice level of support for a light bra. Ultimately what matters most to me is that it's primarily made of natural wool and I've worn it skiing, hiking, and just out and about/around the house and it's been perfect in all situations. Highly recommend!
Originally reviewed on icebreaker.com
January 30, 2025
Definitely buying another one in the future!
[This review was collected as part of a promotion.] Very happy with this bra! I was worried about fit from other reviews about being too small from others but it fits great for me after taking my measurements and comparing to the chart for sizing. I'm used to a looser/more relaxed fit and the one I chose is tighter. I like it for when I'm working out. The next one I get, I'll go up a size for a looser fit so it's comparable to what I normally wear.
Originally reviewed on icebreaker.com
January 24, 2025
The only bra I wear!
[This review was collected as part of a promotion.] This is my second Siren bra and I love it! The fit is very comfortable and I wear it daily. I can wear it many days before it needs a wash, I just hang it up to air out each night.
Originally reviewed on icebreaker.com
January 24, 2025
Love it!
[This review was collected as part of a promotion.] Super comfy! I'm always a S in bras, and a S would have fit well/a little snug if I wasn't pregnant. I kept the S and ordered a M and for me that was a perfect maternity fit! If in doubt size up :)
Originally reviewed on icebreaker.com
January 18, 2025
Getting more!
[This review was collected as part of a promotion.] This is the first wool bra that fits my small chest. I am in love. I hope it lasts longer than some reviewers have mentioned, but in the meantime, I am finally comfortable. I ordered a large and an extra large. The extra large went to my daughter, who took out the inserts. I kept my inserts (they're a bit fiddly, but they make t-shirts look smooth) and I will be ordering more of these bras soon.
Originally reviewed on icebreaker.com
January 17, 2025
I would buy this in every color!
[This review was collected as part of a promotion.] Got one size up and fits perfectly! Warm and good for physical activities as well!
Originally reviewed on icebreaker.com
January 16, 2025
Great product
[This review was collected as part of a promotion.] Perfect fit, comfortable & is warm Call it a Bra With Inserts for clarity
Originally reviewed on icebreaker.com
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