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$60.00
This item's price has been updated recently to ensure you get the best value.
Last priced at -
Our best-selling bra with a comfortable and lightly supportive fit, the Siren Bra features our 150gm jersey corespun fabric, which uses merino wool fibers wrapped around a nylon core for added strength and durability, while retaining next-to-skin softness. We've added a touch of LYCRA® for active stretch. The Siren’s sleek design and no-side-seam construction is perfect for everyday comfort and easy layering, while its thin adjustable elastic straps make for a barely-there feel.
Good for:
83% Merino Wool/ 12% Nylon/ 5% Elastane, Exclusive of decoration
Machine wash warm. Wash inside out with like colors. Do not use softener. Do not bleach. Do not tumble dry. Line dry in shade. Warm iron. Do not iron print and accessories. Do not dry clean.
Fit
Slim
Overall rating: 4.4416733 / 5 from 1243 reviews.
The Women's Merino 150 Siren Bra is praised for its soft and comfortable fabric, versatile color, and overall fit. However, customers have mixed opinions on the support, cup size, and band comfort.
Review topics: ["fit","size","model","problem","weight","straps","weather","coverage","fabric","quality","material","pockets","looks","feel","design","colour","wear","comfort","movement","price","construction","band","padding","support","shape","medium","style","value","top","build"].
"Sizing was accurate. Color was what I needed for white summer clothing. Surprisingly comfortable to wear to yoga class, the one time I forgot to pack a sports bra. Not a smooth look under a tight fitting tee. Very light support, not a push up type of bra. Material is perfect for hot sweaty summer weather."
— Tree Y. (4/5)
"First time trying a merino Bra. Bought the Praline color (nude color) so it never shown on the outer shirt. The under bust strap feels good, not too tight nor too loose, just right for me. The removable cups are thin but enough to mask the pointedness, especially with a thinT-shirt on. This bra doesn't shaped the breasts but it will be a very comfortable everyday bra."
— Emma L. (4/5)
"Love these bras, I've got several and they've lasted so well. The quality is excellent"
— Zozz (5/5)
"I bought and started wearing 4 Siren bras (83% wool, 12% nylon, 5% elastane exclusive of decoration) back in late summer 2023, pretty much wearing them exclusively. Both were at first struggles to put on and take off since the elastic is so tight. Despite my underbust being 31 inches with a full breath in, the XS size’s band was still tight at first but got more comfortable as it loosened. The S size band was more comfortable at first but now that it stretched out, the cups barely cover what I need them to cover. A big plus: I was dramatically more comfortable in hot weather than my family members in more synthetic bras. I especially valued the removable cups and several times thought about writing to the company how I could get more; they were light and thin yet hid pointedness quite well. But overall they and the design of the bra is not going to shape the girls much. After about 2 years of wear, machine wash delicate in mesh bags, and airdry, the adjustable elastic straps started warping, curling, and thus falling down my shoulders and the elastics in the chest band started breaking and poking thru the fabric. Although I’ve still been wearing them for casual situations, I will next try a longer lasting non-elastic band bra."
— CustomerSince2021 (4/5)
"I wanted a wool blend bra for odor resistance and travel, and knew that I loved the Siren line of underwear. I thought maybe it would provide enough support for me (~36 DDD/F) as I'm not picky and tend to prefer wireless/bralette styles, but this particular bra is a little rough, even relative to those standards. My search for a wool bralette continues. The puckering on the cups just below the straps is also a bit of an eye sore, and can show through thin shirts if you tighten the straps to add support. I think, if I was a little smaller, it'd be great! The Siren line is super comfy and great for rinsing off in the sink."
— Hannah E. (3/5)
"FYI these run a little small/snug. I'd normally be a medium for tops, but the Large fit well. The band felt too snug at first, but I decided to keep it and now I love this bra and will order another. I got the undyed white one. You can see the tan pads inside through the bra, but when it's under a shirt, you cannot see that. The fit is very flattering. I've been doing braless or wearing bralettes without padding for many, many years and it feels so nice to have a slightly more perky and rounded feminine figure now. Thank you, icebreaker! I'll definitely be ordering more from you."
— Forest (5/5)
"The best bra ever! I wear these all the time and have them in so many colors. It's so soft and has the best support for a bralette. I love that they come with padding, so I can either use them or take them out."
— Sofi (5/5)
"J'ai longtemps hésitée mais je ne suis pas déçue par ce soutien-gorge Siren. Plutôt confortable, le maintien me convient pour un 95 B. La couleur Summit est jolie, la coupe est flatteuse. Je ne mets pas pour l'instant les inserts, quoique assez discrets par leurs épaisseurs, je verrais aux beaux-jours. Je recommande, pour celles qui recherchent un soutien-gorge sans armature pour ses matières naturelles."
— Valérie (5/5)
"I love these bras!! I have them in multiple colors. They are durable and easy to clean. I love that you can wear them multiple times without worrying about odors, perfect for travel."
— Lars (5/5)
"I like the bra, but hate the labels. Used to take them out but not this time because they sewed them together with the seam. Come on, is it necessary to have so many labels? They’re so itchy."
— Yu-hui L. (1/5)
Find the size that fits you best based on people just like you.
Use the chart below to determine your size. If you’re between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit. If your measurements for chest and waist correspond to two different sizes, order the size indicated by your chest measurement for tops and your hip measurement for pants.
| XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|
| Bust | 30-32 | 32-34 | 34-37 | 37-40 | 40-42 | 42-45 |
| Arm length | 30 | 30.25 | 30.5 | 30.75-31 | 31-31.25 | 31.25-31.5 |
| Waist | 24-26 | 26-28 | 28-30 | 30-33 | 33-36 | 36-39 |
| Hips | 33-35.5 | 35.5-38 | 38-40 | 40-42.5 | 42.5-45 | 45-48.5 |
| XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|
| Bust | 76-82 | 82-88 | 88-94 | 94-100 | 100-107 | 107-116.5 |
| Arm length | 76-76.5 | 76.5-77 | 77-77.5 | 78-78.5 | 78.5-79 | 79-79.5 |
| Waist | 61-66 | 66-71 | 71-77 | 77-84 | 84-91 | 91-101 |
| Hips | 84-90 | 90-96 | 96-102 | 102-108 | 108-114 | 114-123 |
Our three different fits - slim, regular, and relaxed - ensure that when worn together, layers move and breathe like a single garment.
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