The merino t-shirt
We know that a t-shirt at €75 isn't cheap. But this merino wool fabric is very expensive and we manufacture in Europe: we've cut our margin on this product to the bare minimum, it's the lowest price you'll find for this quality and this ethical way of producing.
Released in May 2022
This t-shirt is mostly made of wool, which is why it doesn't crease, doesn't lose its shape and holds onto very little odour. It also contains a bit of polyamide to make it more durable.
Full composition: 80% merino wool, 20% polyamide.
The merino wool in this t-shirt is particularly fine (17.5 microns in diameter, when the average for merino wool is around 20 microns). The finer the wool fibres, the less rigid they are and the less prickly they feel.
3 times more durable than a 100% wool t-shirt thanks to the addition of a nylon thread.
Our merino wool-polyamide yarn has been treated so it can be machine-washed without felting.
This t-shirt is made in Portugal, at the Triwool factory we've worked with since 2017.
Worn, tested and validated by thousands of customers, this t-shirt is the result of a quality-ethics-price compromise that we currently consider to be optimal. For example, we could lower the proportion of nylon in its composition, but that would make it far less durable.
The techniques behind the quality
Wool - polyamide blend
We use a wrap-spun yarn: the polyamide (more durable) wraps around the wool (more delicate) to protect it. Compared to a very high-quality 100% merino model, our t-shirt pills less (rated 4 vs. 3 - see the lab test results here) and holes take 3 times longer to appear (45,000 cycles vs. 14,000 - see the test results here).
Wool - polyamide blend
Pre-washed
Pre-washed
This t-shirt is stabilised and pre-washed at the factory, so it won't shrink at home.
Wool - polyamide blend
Pre-washed
The t-shirt for busy days
Knitted from a very fine, machine-washable wool, this t-shirt barely holds onto odours, doesn't itch, doesn't wrinkle and won't lose its shape. It's also 3 times more durable than a 100% wool one, because we protected the fibre by wrapping it in nylon. A t-shirt made for travel and stressful days.
In detail
Flowing fabric
While this t-shirt is fairly dense for a wool piece (170g/m2), it isn't stiff at all and drapes naturally over your body.
Neck tape
The clean-finish tape runs along the entire shoulder line: it lasts longer over time, and it helps the t-shirt sit nicely.
Printed logo
To avoid labels that scratch your neck and fastening seams that damage the fabric.
How to wear it
A few ideas if you're stuck
Composition
80% wool, 20% polyamide.
Origin and certifications
- Assembly, knitting, dyeing: Portugal
- Spinning: China
- Wool: South Africa
... made in Portugal and not in France? Producing in Portugal does let us sell at a lower price, of course. But it's also easier to achieve good quality there: back in the 80s, when France offshored its industry, Portugal strengthened its own. That said, others do manage to make merino t-shirts that are 100% made in France, like Ogarun.
... does the yarn come from so far away? To make this t-shirt, we use a very special yarn: very fine merino wool wrapped in polyamide and treated to be machine-washable. We'd have preferred a spinning mill closer to home, but we haven't found this quality anywhere else (yet).
... does the wool come from so far away? Extra-fine merino wool always comes from far away: mainly from China, Australia, New Zealand, South Africa and Argentina. We buy the yarn directly, so we can't choose where the wool comes from.
How this product will age
How do we know? We ask our customers what they think of the product one year after they've bought it. And if the product is less than a year old, we give you our predictions based on some spontaneous feedback and on our experience with similar products.
The t-shirt will stay in very good condition. Thanks to the merino wool, no loss of shape has ever been reported to us. And thanks to the polyamide, to date, no one has ever reported a single hole or bit of pilling.
The collar may fold a little in places: it's something we've seen on every other merino t-shirt on the market, and we don't think we can improve on this point. To put it back in shape, just give it a quick press with an iron.
The colour will lose some of its depth with washing. The good news is that, since this happens evenly, it doesn't give a worn look, just a less intense colour. To slow this down, be sure to wash this t-shirt inside out.
Lastly, we've had a few cases of slight fading around the armpits with this t-shirt: some acidic sweat "attacks" the dye on the wool. This fading can happen on any colour, but it seems to occur mainly on the orange one.
Care instructions
The first time you wear it, you might feel the t-shirt prickle or itch slightly. Don't worry, your skin will get used to it very quickly and that feeling will soon disappear.
Wool is fungicidal and bactericidal: it holds onto very few odours. So there's no need to wash this t-shirt too often. More often than not, airing it out is enough.
It's machine-washable at 30°C: the wool has been treated to reduce felting and stop the t-shirt from dropping three sizes. But BE CAREFUL, if you chose the pale yellow colour, make sure to wash your t-shirt with other light-coloured clothes if you don't want it to change colour (wool absorbs so-called "fugitive" dyes far more than cotton does).
No tumble dryer, to avoid shrinking it, but don't dry it on a hanger either: your damp t-shirt is heavy and could lose its shape under the weight of the water. A drying rack is ideal.
Are little bobbles appearing on the areas that rub? It can happen. In this article we explain how to de-pill your clothes effectively.
And if your t-shirt loses its shape, we explain here how to fix this easily using nothing but your iron.
Environmental cost
This environmental cost is calculated using the official methodology of the French environmental labelling scheme (in force since 1 October 2025).
The label above shows the product's environmental cost according to the official methodology of the French environmental labelling scheme. It's what its manufacture "costs" nature when you look at its impact on climate change, ocean acidification, its toxicity to freshwater, and so on. Currently rolled out in the textile sector, this label should soon appear on many everyday consumer products (food, cosmetics, furniture, etc.) to help you shop more responsibly.
The merino t-shirt therefore has an environmental cost of 856 impact points*.
By comparison, a garment of equivalent weight, 100% polyester, made in Bangladesh and sold by a fast fashion brand, has an environmental cost of 1201 points*.
Why this difference? Here are the main reasons:
- The countries of production: manufacturing in Portugal or France requires less fossil energy than in Bangladesh (one of the main producers of low-cost clothing). The result: this more local production limits the impacts on climate change, ocean acidification and resource depletion.
- The material: wool has a fairly significant environmental impact, in particular because sheep release methane during digestion, a gas with a strong greenhouse effect. That's why the difference between our product's impact and that of fast fashion isn't very large. However, unlike polyester, wool has major advantages: it's warm (thanks to its insulating properties), keeps its shape (the fibre is very elastic), breathable (it wicks away perspiration) and odour-resistant (it prevents bacteria from developing).
- Durability: fast fashion brands drive purchases in particular by renewing their collections very quickly and offering a huge number of items, and they discourage repairs by charging laughably low prices. This increases the number of garments sold per person and reduces the number of times a garment is worn. At Loom, on the other hand, we've chosen business practices that encourage our customers to keep their clothes as long as possible.
Even though we've done everything we can to keep it as low as possible, this product's environmental impact isn't negligible. So before you buy, make your clothes last as long as possible.
*Calculations by Loom on 14/09/2026. Click the links to access the simulations from the official Ecobalyse tool and get more details on the assumptions used. Please note: the number of points isn't always exactly the same on Ecobalyse (whose method evolves regularly) as on the official environmental label (based on version 7.0 of Ecobalyse)
Reviews for this product
The standard practice is to send review request e-mails a few days after the purchase. We wait a month, the minimum time needed to form a well-informed opinion
Customer review policy
When do you ask customers for reviews?
We send you a review request one month after you receive your order. We reckon that's the minimum amount of time needed to have worn and washed a garment several times and to really form a well-informed opinion. After that, all your reviews are published within the week, whether they're good or not.
Do you ask for reviews on 100% of the products customers order?
We used to do that at first, then we realised we were starting to send far too many emails to some people who buy from us regularly. In short, we were spamming a bit. On top of that, it was starting to take up way too much of the team's time to reply to reviews - since we want to reply individually and privately to almost every person who leaves us a review. Today, we no longer ask for reviews on products that meet the following two criteria: 1/ There are enough reviews shown on the site for people who want to buy to form a well-informed opinion about the product 2/ We've read enough reviews within the Loom team to understand how to improve the product for the next generation.
Hold your horses: what proves we don't tamper with reviews by slapping 5 stars everywhere?
Honestly: nothing, we're just giving you our word. Same as for everything else, by the way: where we manufacture, where our wool comes from, our lab test scores, and so on. The only times we might touch what you write are if your message contains spelling mistakes (and even then, quite a few slip past us) or if it's racist, homophobic, and so on (but that's never happened so far).
Asking for a review after a month isn't enough to know whether the clothes really are durable, is it?
You're right, which is why we send you another review request email a year after your purchase – we even ask for a photo to see how your garment has aged. The answers help us improve our clothes and provide information about "how this product will age" on our product pages. To avoid bothering our customers needlessly, we don't ask for these reviews on 100% of the products ordered: as soon as we have enough data to understand the areas for improvement, we stop asking for the one-year reviews.