The long-sleeve t-shirt
Released in November 2024
This is the first generation of our long-sleeved t-shirt. To develop it, we started from the cut and the fabric of our heavyweight t-shirt.
We use organic cotton because so-called "conventional" cotton is a disaster for insects, birds and farmers. More info in this article.
Composition: main fabric 100% organic cotton, ribbed cuffs (sleeves and collar) 98% organic cotton 2% elastane.
A dense fabric, which we also use for our heavyweight t-shirt and our Henley. With cotton jerseys, the heavier the fabric, the less it loses its shape (see our test results).
A modern cut, not too close to the body, so you've got a bit of room to move. Roomier than a classic cut without being oversized.
For this t-shirt, we used an "open-end" yarn, a spinning technique invented back in the 70s that tightly tangles the fibres together. The result is a slightly irregular feel and texture, like the beautiful t-shirts you find in vintage shops.
This t-shirt is made in Portugal, at the Triwool factory we've worked with since 2017.
The techniques behind the quality
Open-end yarn
This type of spinning gives the fabric a rather "dry" feel. The upside: zero twisting (because the yarn isn't twisted back on itself, unlike classic spinning known as "ring-spun").
Open-end yarn
Elastane reinforcement
Pre-washed
Elastane reinforcement
The ribbed cuffs and collar are reinforced with an elastane thread, so they won't lose their shape over time.
Open-end yarn
Elastane reinforcement
Pre-washed
Pre-washed
This t-shirt is stabilised and pre-washed at the factory, so it won't shrink at home (with cotton clothing, most of the shrinkage happens during the first wash).
Open-end yarn
Elastane reinforcement
Pre-washed
Not afraid to get its elbows dirty
This long-sleeved t-shirt is a bit thick. To help it hold its shape, we picked the same fabric as our heavyweight t-shirt, a 100% organic cotton material with a nice, slightly uneven texture. The straight cut avoids the pyjama effect (or the Sheldon Cooper look). And if you're the type to roll up your sleeves, you're in luck: thanks to their elastic ribbed cuffs, they won't stretch out over time.
In detail
Simple collar
The collar is simple, reinforced with an elastane thread so it won't lose its shape and secured with a double topstitch for a better hold.
Ribbed cuffs
The sleeves are finished with a ribbed cuff, to keep them from stretching out over time.
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.
Composition
Main fabric: 100% cotton
Ribbed cuffs (collar and sleeve ends): 98% cotton 2% elastane
Origin and certifications
- Spinning, weaving, dyeing, and manufacturing: Portugal
- Cotton: Turkey
... make them in Portugal and not in France? Of course, producing in Portugal lets us sell at a lower price. But it's also easier to achieve good quality there: in the 1980s, when France offshored its industry, Portugal strengthened its own. That said, others do manage to make excellent t-shirts that are 100% made in France, such as 1083.
Why does the cotton come from so far away? Actually, it's hard to do better. While a few die-hard Gauls manage to grow it in their fields, cotton cultivation is marginal in Europe. The closest places to source it are Egypt, Turkey and Greece.
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.
Thanks to its high weight, this t-shirt will barely lose its shape. Thanks to its so-called open-end yarn with tightly tangled fibres, it won't pill. And because the yarn wasn't twisted during spinning, it won't twist out of shape. That said, its uneven texture may become more pronounced wash after wash, like on some vintage t-shirts. Finally, as with all 100% cotton garments, the colours will fade over time and the white may yellow due to deodorants and sweat (but our customers have managed to fix it every time using sodium percarbonate, tutorial here).
Care instructions
Wash it inside out at 30°, with similar colours, and everything will be fine. And skip the tumble dryer (not good for the collar's elastane).
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 long-sleeve t-shirt therefore has an environmental cost of 737 impact points*.
By comparison, a garment of equivalent weight, made from 100% conventional cotton, manufactured in Bangladesh and sold by a fast fashion brand, has an environmental cost of 3149 points*.
Why this difference? Here are the main reasons:
- The countries of production: manufacturing in Portugal or France requires less fossil fuel than in Bangladesh (one of the main producers of low-cost clothing). The result: this more local manufacturing limits the impacts on climate change, ocean acidification and resource depletion.
- The material: organic cotton has a fairly low environmental impact compared to conventional cotton, notably because it uses few pesticides (so low toxicity for freshwater) and because it's biodegradable (so fewer issues with microfibres or end-of-life waste).
- Durability: fast fashion brands encourage buying, notably by renewing their collections very quickly and offering a huge number of styles, and they discourage repair 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 to adopt business practices that encourage our customers to keep their clothes as long as possible.
Even though we've done everything to keep it as low as possible, the environmental impact of this product isn't negligible. So before you buy, make your clothes last as long as possible.
*Calculations carried out by Loom on 14/09/2026. Click the links to access the simulations from the official Ecobalyse tool and get more details about 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.