Icebreaker Long Sleeve Siren Sweetheart Top - Women's


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If decadence suits your style, you'll love the Icebreaker Long Sleeve Siren Sweetheart Top for women. This pure merino underwear offers year-round next-to-skin luxury and performance, not to mention a flattering fit. The sweetheart neckline complements the silky soft hand of the ultra-light merino fabric. You'll love the super soft feel and subtle insulation in cold weather, and thanks to wools natural performance characteristics, you'll find it equally as comfortable in warmer weather. The Siren's body fit style ensures excellent moisture-wicking, while the lightweight knit gives it exceptional breathability. Each color choice offers its own unique print that adds a touch of style.


  • Material: Merino wool
  • Ultra-light knit
  • Breathable
  • All-natural
  • 7mm (0.2 in) single elastic at neck
  • Sweetheart neckline

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Review Summary

5 out of 5

3 Reviews

  • Build quality: 3
  • Great design: 3
  • Performance: 2
  • Ease of use: 1

  • Cost: 1
Comfort: 5 / 5
Quality: 5 / 5
Warmth: 3 / 5

3 Ratings & Reviews

Comfort: 5 / 5
Quality: 5 / 5
from south dakota
25-34 yrs

silky soft
March 08, 2013

So comfy, clingy fit, so soft! Nice long arms, the waist length is a bit long for my short torso as usual, but its not so long I can't work with it. Has an almost leotard type feel. You can't really see the awesome design on the black one. Great quality like all icebreaker stuff. A bit see thru. Can be dressed up. Love it.

Pros: Great design, Build quality, Ease of use, Great value
Comfort: 5 / 5
Quality: 5 / 5
from MA
35-44 yrs

Light weight warmth
January 30, 2013

It has been cold in the northeast this winter, and icebreaker makes a great product. This particular top is warm for its light weight (their lightest, at 150), is form fitting but not tight, with a neckline that dips down in front, so it doesn't show on any long sleeve top that i wear. Purchased two, both have been repeatedly washed in the washing machine and hung to dry without a problem. At 5'10" and 135 pounds, I purchased a medium. FYI: The wool is from New Zealand, but is made in China. Can be pricey.

Pros: Great design, Build quality, Performance, Cons: Cost
Comfort: 5 / 5
Quality: 5 / 5
Warmth: 3 / 5

Icebreaker wool rocks!
February 19, 2013

When you finally figure out that your base layers MUST be wool for safety and warmth in icy-dicey situations, start by building from the base up with icebreaker. Your sweat won't odor up, or send you into hypo-state with this wool. PS... looks good on the body too :)

Pros: Great design, Build quality, Performance

Also Available

Icebreaker Women's Long Sleeve Siren Sweetheart Top Photo

Azalea, Black, Black-001, Cherub, Gulf, Hyacinth and Naked.

Available sizes, while supplies last, include size xs, size small, size medium, size large and size extra large: xs, s, m, l, xl.

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