Nice quality and so flattering
"It feels so soft and nice close to the skin. It hugs the body and is very flattering."
Free standard shipping for orders above £40
Free returns
Merino Blend
€69,95
This item's price has been updated recently to ensure you get the best value.
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€69,95
This item's price has been updated recently to ensure you get the best value.
Translation missing: en.products.product.price.price_tooltip
A soft and stretchy T-shirt for everyday comfort and layering, the Siren Short Sleeve Sweetheart features a slim fit and our corespun merino wool blend fabric.
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.
Model measurements
Height: 179cm / 5'10". Waist: 62cm / 24". Anya is wearing size S.
Slim Fit
A snug, close-to-body fit for low bulk layering.
The Siren is a lightweight next-to-skin layer. It’s crafted from 150gm merino jersey corespun fabric that’s lighter than most other fabrics we use, and is made with a snug, slim fit that works perfectly as a cosy piece beneath your other layers. Our Siren tees fit tighter than other tees in our range, just size up if you like a looser fit.
Standard delivery: free for all order over £ 40. Delivery in 5-7 days, from Monday to Saturday, during working hours.
Please visit our Delivery page and find out more about the ways in which you can receive our products.
You have 30 days from delivery to follow our quick and easy return procedure.
Overall rating: 4.474138 / 5 from 116 reviews.
The 150 Siren Sweetheart T-shirt offers a slim fit and is made from a soft, stretchy merino wool blend fabric. Customers appreciate its high-quality construction, flattering neckline, and suitability as a base layer for work. While opinions on the weight and sleeves vary, the overall comfort and style are highly praised.
Review topics: ["size","fit","weight","problem","fabric","material","quality","colour","design","looks","comfort","length","wear","top","sleeves","shirt","layer","weather","buy","neckline","icebreaker","cut","base layer","use","temperature","piece","sweater","smell","undershirt","tee"].
"It feels so soft and nice close to the skin. It hugs the body and is very flattering."
— Bella (5/5)
"I am 5’2” and 105 lbs. I ordered XS in black and am happy with the size and really like the look. It is fitted, but not too tight and the length is good for me. Can be dressed up or down. Easy to handwash. What I don’t like is the large and bulky tags on the inside. Very irritating for a fitted top. Icebreaker, please make tops without the large tags!"
— Honolulu c. (5/5)
"I normally wear an XS in the 200 weight, but the 150 is a little sheer, so I will size up for my next t shirt."
— Tabitha F. (5/5)
"Fits great looks nice and right balance of warmth for fall"
— ALLYSON S. (5/5)
"Sweet! Soooo cute and much more comfy than cotton."
— Jacqueline B. (5/5)
"Perfect fit and weight!"
— Julie G. (5/5)
"I love the color and quality of this wool blend T-shirt. The neckline is elegant and the length is nice. I only gave one less star because the shirt runs quite tight and I would have preferred a slightly looser fit."
— AJB (4/5)
"This is my second one. I wear it for sports, as an undershirt or even as a pyjama top. Love it! My only tiny complaint is the tags sewn into the seam. Tricky to remove but necessary for comfort."
— LoLo (5/5)
"I use this shirt for Hiking. It's cool in the summer and comfortable. I don't know how it works, but somehow it keeps the sweat from getting stinky. One thing you need to know about this brand is you have to wash it on gentle setting. Also, I ordered a size bigger than I might ordinarily order cause I didn't want it to be too snug. Large was perfect when medium is usually what I order on other shirts."
— Hiker (5/5)
"Confortable et belle coupe"
— Martine (5/5)
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.
| XXS | XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|---|
| Bust | 27.5-30 | 30-32.5 | 32.5-34.5 | 34.5-37 | 37-39.5 | 39.5-42 | 42-46 |
| Arm length | 30 | 30.3 | 30.3 | 30.5 | 30.8 | 31 | 31.3 |
| Waist | 22-24 | 24-26 | 26-28 | 28-30.5 | 30.5-33 | 33-36 | 36-40 |
| Hips | 31-33 | 33-35.5 | 35.5-38 | 38-40 | 40-42.5 | 42.5-45 | 45-48.5 |
| XXS | XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|---|
| Bust | 70-76 | 76-82 | 82-88 | 88-94 | 94-100 | 100-107 | 107-116.5 |
| Arm length | 75.5-76.5 | 76.5-76.75 | 76.75-77 | 77-77.5 | 77.5-78.25 | 78.25-79 | 79-79.5 |
| Waist | 56-61 | 61-66 | 66-71 | 71-77 | 77-84 | 84-91 | 91-101 |
| Hips | 79-84 | 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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