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Spring Essentials
Main content
  1. Home
  2. Women
  3. Clothing
  4. Lingerie, Hosiery & Shapewear
  5. Bras & Bralettes
Icebreaker Siren Wool Blend Bralette, Main, color,
Icebreaker Siren Wool Blend Bralette, Alternate, color,
Siren Wool Blend Bralette, sales video thumbnail
Icebreaker Siren Wool Blend Bralette, Alternate, color,
Icebreaker Siren Wool Blend Bralette, Alternate, color,
Icebreaker Siren Wool Blend Bralette, Alternate, color,

Siren Wool Blend Bralette

Icebreaker

SOLD OUT

This item is no longer available. Browse our recommendations for something similar.

Details & care

This lightly supportive triangle bralette is shaped from naturally breathable, soft merino wool–blend jersey with an added touch of Lycra® spandex for stretch.

  • Slips on over head
  • Adjustable straps
  • Elastic bustband
  • 83% merino wool, 12% nylon, 5% Lycra spandex
  • Machine wash, line dry
  • Imported
  • Certified to the Responsible Wool Standard (RWS) to meet rigorous animal-welfare and land-management requirements
  • OEKO-TEX®–certified materials free of harmful substances
  • Women's Clothing
  • Item #5991517
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Size info

  • XS=00-0, S=2-4, M=6-8, L=10-12, XL=14-16.
  • Best fits cup sizes A-D.

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Reviews

(20)
3.9 out of 5
Write a Review

Most helpful positive review

May 22, 2021
Great bralette!
I love these bralettes! I have 5 of them now, and they are my go-to bras. Don’t let the wool fabric put you off. These are so comfortable and can be worn a couple of times before going in the (cold water!) wash. One little thing - there are pockets for inserts and a couple of mine came with the insert, but the rest did not. This one (Gravel color) did not have inserts. I much prefer to wear them with the insert for a nicer silhouette. Since I always remove the inserts before washing so they don’t get twisted, it’s not a big deal to trade them out, but I do wish they each came with their own inserts.
KateClaire
Verified purchase
5found this helpful

Most helpful critical review

Aug 7, 2020
Incentivized review
Band too tight
I’m 116lbs 34B with athletic build and I just could get the sizing to work for me. Medium, not enough support but the bottom band was perfect, small was great support but the band was way too tight!
Yoll
Verified purchase
5 stars
55%
4 stars
10%
3 stars
10%
2 stars
15%
1 star
10%
Sort by Most Helpful
KateClaire
Verified purchase
Color: Gravel
May 22, 2021
Great bralette!
I love these bralettes! I have 5 of them now, and they are my go-to bras. Don’t let the wool fabric put you off. These are so comfortable and can be worn a couple of times before going in the (cold water!) wash. One little thing - there are pockets for inserts and a couple of mine came with the insert, but the rest did not. This one (Gravel color) did not have inserts. I much prefer to wear them with the insert for a nicer silhouette. Since I always remove the inserts before washing so they don’t get twisted, it’s not a big deal to trade them out, but I do wish they each came with their own inserts.
5found this helpful
domnicella
Verified purchase
July 15, 2020
A miss for B+ cup sizes
I'm a 36C and the large is my size-ish. The band around the ribcage is snug, but the cups have zero support. If the band was less snug I'd keep it as a couch quarantine bra; it's nowhere near supportive enough for even light yoga or a leisurely walk around the block. Forget any sort of exercise if your boobs are a B cup or larger. Great in theory but kind of the lesser of both worlds (not enough support for activity, yet not comfortable enough for lounging). For context, I got this to be a light/medium support bra for yoga and walking while pregnant. Fabric is otherwise soft and nice.
3found this helpful
reanbug
Verified purchase
July 10, 2020
Incentivized review
not smooth cup
I wanted to love this bra. I'm all about the wool undergarments. But this bra had one major NO for me and it is this. The bra cup has an envelope opening for you to put a pad in there if you wanted. Totally normal. Usually they hide it under your armpit or whatever. Not this one! This envelope is right at the top of the triangle cup. I can't handle the feel of a bulky seam anyway and this seam was in a terrible location. Plus it made the whole cup look a little off, the stretch wasn't even.
3found this helpful
Samantha B
Reposted from ExpertVoice.com
Sept 9, 2025
Super durable, The elastic stays good for so long. I wear this bra every single day. no complaints. love that it doesnt get smelly after a week in the backcountry
Frankie
Reposted from icebreaker.com
Feb 2, 2025
Tough for Busty Ladies
It's so hard to find wool bralettes that fit large cups and small bands. Wool& scoop and Branwyn busty bralettes were busts. I didn't have high hopes for this but I got one on sale so yolo. I am a 34DD and ordered a medium which fit the ribcage, but my DD cups spill over the sides creating a quadra-boob situation. It's still sorta wearable as a lounge bra so I'll keep it for summer traveling with loose shirts but I wish these wool companies would test on this body type when designing :( I just want a bra option that doesn't get stinky with sweat! Heads up that this bra was scratchier upon arrival than the siren underwear I have but it gets better with washing.
Mkemom
Reposted from icebreaker.com
Verified purchase
Sept 6, 2024
Meh
[This review was collected as part of a promotion.] Kind of itchy. Hard to get on. Fabric wrinkles at the top of the "cup" that show through my clothes. If I hadn't worn it, I'd return it.
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