Icebreaker
Women's Merino 150 Siren Short Sleeve Sweetheart
A soft and stretchy T-shirt for everyday comfort and layering.
Measurements are in inches
| Bust | Arm Length | Waist | Hips | |
| XS | 30-32 | 30.25-30.5 | 24-26 | 34-36 |
| S | 32-34 | 30.5-30.75 | 26-28 | 36-38 |
| M | 34-37 | 30.75-31 | 28-30 | 38-40 |
| L | 37-40 | 31-31.25 | 30-32 | 40-42 |
| XL | 40-42 | 31.25-31.5 | 32-35 | 42-44 |
Free shipping on orders over $99 (oversize charges may apply) - Learn More
Fast and easy returns (no returns for final sale or heavily discounted items) - Learn more
Found a better price elsewhere? We guarantee you the best price on this item - Learn more
Premium gear is our promise
We were established almost 75 years ago by John Monod, a Swiss mountain guide and ski instructor. Quality outdoor gear is what our brand was built upon since 1949. Learn more.
Frequently Asked Questions
Have more questions? See all FAQ's
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Absolutely! We offer fast & easy returns on most products.
Exceptions include products 30% off or more, climbing gear, underwear & more.
Read our return policy here.
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All orders over $99 will qualify for free standard shipping within Canada.*
International shipping charges will apply for all non Canadian orders.
Oversize charges apply to larger items.
*See all shipping information here.
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Standard shipping estimates are as follows:
Alberta and British Columbia: 2-4 business days
Saskatchewan and Manitoba: 3 - 4 business days
All other provinces and territories: 5 - 9 business days