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Icebreaker Nature 150 Siren Cami Top - Merino Wool (For Women)

Item #4743P
$29.95 Save 40% Compare at $50.00
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About Icebreaker Nature 150 Siren Cami Top - Merino Wool (For Women)

Discontinued. The soft, ultrafine merino wool construction of Icebreaker's Nature 150 Siren cami top is truly irresistible -- so don't go near this moisture-wicking, breathable and temperature-regulating tank unless you're ready to be completely obsessed with it.


Specs about Icebreaker Nature 150 Siren Cami Top - Merino Wool (For Women)

  • Base layer weight: Lightweight
  • Sleeveless
  • Length: From shoulders 25" (based on size medium)
  • Fabric: 4% elastane, 96% merino wool
  • Care: Machine wash, hang to dry
  • Made in China
  • Visit our Wool Guide
  • US shipments only


Icebreaker Women's Size Chart

Size 0 - 2 4 - 6 8 - 10 12 - 14 16 18
Bust 32 34 36 - 38 39 - 40 40 42
Waist 25 26 - 27 28 - 30 32 34 - 35 36
Hip 35 - 36 37 - 38 39 - 40 41 - 42 43 - 44 45 - 46

Note: Measurements are in inches.


Do you own this product? Write a review and help others with their buying decisions!

4.083333 5 Overall Rating: 4.1 Based on 48 reviews

Most Helpful 5-Star Review

Verified Buyer Reviewed by North Country Fair from Upper Peninsula, Michigan on Wednesday, March 4, 2015
Cannot say enough about wool!! This camisole is an every day wear for me - have a handful and have been wearing them for 2 years - heavy use, hand wash and hang dry in a jiffy - hold up amazingly well - showing only the slightest wear. The best part is the adjustable straps! So hard to find anyth... Read More
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  • Verified Buyer Reviewed by mh from PDX on Tuesday, September 29, 2015
    This is the only wool camisole I have ever purchased that had regular petroleum-product lingerie straps. All my camisoles are very visible when it's warm or hot out, and go under cover in colder weather. This one will have to be more hidden than most.

    So far the wool is as nice as I expected. Length is a bit longer than I prefer, but still can be tucked into a pair of pants.
  • Verified Buyer Reviewed by beachedsiren from Oregon on Tuesday, August 25, 2015
    The body of this tank is very good and the quality of the wool can not be questioned. However, the straps are a bit long and I am a tall, long waisted person. I would anticipate that will a lot of wear and washing that I might eventually have to replace these straps with something more substantial like cotton ribbon. They are also not substantial enough to provide any support like a tank with wider straps might. The XL fit as anticipated - not loose but not snug either. My chest size is about 40 inches and I prefer looser clothing that glides over the lumps and bumps most 60+ year olds have.. If you are comparing Icrebreaker to the Super.natural brand be advised that their sizing is very, very small. I could not wear the Super.natural XL I purchased it was so small. I probably could have but I really hate skin tight clothing that fits more like a compression garment. I have always avoided wool as I found it itchy. Not this smooth, gloriously soft stuff! It is lovely feeling agains your most delicate skin and I think actually softer than the silk thermal tanks I purchased from Land's End. I wouldn't pay full price for it but the prices on Sierra Trading Post are reasonable enough to tempt me. I have yet to test its thermal regulating properties but an upcoming trip to Scotland will compare the silk to the Merino Wool.
  • Reviewed by Sharpie617 from Boston on Sunday, August 23, 2015
    I bought this tank on a different site for twice as much because I needed it for a trip and it wasn't available on Sierra. I really needed two (for backpacking in Central America), but couldn't justify spending the money. Luckily, thanks to my obsessive stalking on Sierra, I came across this soon after listing and was able to grab my size in the "snow" color. As others have mentioned, I love that the straps are adjustable so it is long enough for my 5'9" frame. It's also light enough to layer, and the straps don't appear to show through another t-shirt. One comment about the color- the image that accompanies the "snow" color currently shows a very light flower pattern. The tank I received was plain white/off white- no patterns at all, which was fine with me, but good to know if you're looking for the pattern.
  • Verified Buyer Reviewed by Vera from Ohio on Thursday, March 12, 2015
    Great product, fits fine. The straps are great and you cannot see through the fabric. The straps are placed in a spot which doesn't rub my underarms. Since it is made of the non microfine wool it is a little scratchy. Hopefully, when it gets washed for the first time it will soften up. Bought it to wear during aerobic activities like backpacking and think it will work great Hopefully, Icebreaker will make another version of this out of microfine wool. My original shelf bra cami from them was made from Microfine wool and I never had issues with scratchiness. The price was right so altogether think it will be a great product.
  • Verified Buyer Reviewed by MCO from Colorado on Tuesday, March 10, 2015
    I have several in various colors for layering in the winter and for wearing under a button down in the warmer months. Very comfortable. Fit is true to size.

Question & Answer

Questions about this product? Get answers from community and staff experts.

  • “Does this cami have a shelf bra?”
    Asked by Anonymous from Unknown on 4/10/2012 12:00:00 AM
    • Unfortunately the top does not contain a shelf bra.
      Answered on 4/10/2012 12:00:00 AM by Prod. Spec. Ryan from Sierra Trading Post
    • Not this one BUT there is an Icebreaker cami here that DOES have a shelf bra though. Same cut but adds elastic band and only comes in black and the bright aqua (as of 12/14/12). Try "similar products" or search Sierra's site with "Icebreaker shelf bra" and if its still here, you'll find it!
      Answered on 12/14/2012 12:00:00 AM by jjackrabbit from Madison
  • “Does this top contain a shelf bra? Thank you!”
    Asked by Anonymous from Unknown on 3/24/2012 12:00:00 AM
    • Unfortunately the top does not contain a shelf bra.
      Answered on 3/26/2012 12:00:00 AM by Prod. Spec. Ryan from Sierra Trading Post

About Icebreaker

Crafted using only the finest merino wool grown in New Zealand’s Southern Alps, Icebreaker clothing is known around the globe for its incredible comfort and performance. Unlike synthetic fabrics developed in a lab, Icebreaker merino wool is grown, cultivated and field-tested in the mountains. Designed to offer exceptional comfort during a range of outdoor sports, Icebreaker underwear and apparel naturally resists odors, regulates body temperature, wicks moisture and dries quickly. Superfine New Zealand merino wool is also much softer than traditional sheep’s wool, which means no itch. Icebreaker socks, long underwear and base layers also come in a selection of weights to keep you warm without overheating. Ready to join the merino revolution?