The twill overshirt
Released in June 2025
We use organic cotton because so-called "conventional" cotton is a disaster for insects, birds and farmers. More info in this article.
Known as "sergé" in French, twill is a type of fabric recognisable by its pronounced diagonal lines. Ours was made by the Telatex mill in the Vosges, in eastern France.
This overshirt is made in Portugal, at the Supercorte factory we've worked with since 2017.
The techniques behind the quality
Thick fabric
Fabrics for shirts rarely exceed 200g/m2. For this overshirt, we chose a thick twill (355g/m2) that's particularly hard-wearing.
Thick fabric
Pre-washed
Pre-washed
This overshirt 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).
Thick fabric
Pre-washed
Sturdy and casual
A good overshirt starts with a sturdy fabric. So we knocked on the door of Telatex, a mill in the Vosges, in northeastern France, which was founded in 1840 and makes (among other things) some very fine workwear. With its dense twill, its two big flap pockets and slightly faded colours, there's no way to look stiff in this overshirt.
In detail
Twill weave
A fabric you can spot by its distinct diagonal lines (denim, for instance, is a twill)
Bartacks
The seams are reinforced on the areas where the fabric is under strain.
Garment-dyed
Done on the finished garment rather than the roll of fabric, giving a slightly uneven colour that will develop a patina with each wash.
2 flap pockets on the outside + one inside
So you can wear it as a jacket.
How to wear it
A few ideas if you're stuck
Composition
100% cotton
Origin and certifications
- Cotton: Turkey
- Spinning and weaving: France
- Manufacturing and dyeing: Portugal
... make them in Portugal rather than France? Of course, producing in Portugal means we can sell them for less. But it also makes good quality easier to achieve: back in the 80s, when France offshored its industry, Portugal was busy strengthening its own. That said, others do manage to make overshirts that are 100% made in France, like Kidur.
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.
This overshirt will soften with each wash and become more and more comfortable. The colour will develop a patina with the sun, the machines and time – making your overshirt unique. The fabric will take on a more irregular, fluffier look as it rubs and goes through the wash.
Care instructions
Before putting your overshirt in the machine, undo all the buttons, unfold the collar and turn it inside out: this protects the fabric and the collar folds from friction. Wash at 30° (don't spin too hard, to avoid creases that are tricky to iron out), then dry it on a hanger, making sure the collar sits back in place. All that's left is to slip it on and head down to the docks, where the weight and the boredom bend your back.
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 environmental cost of the product 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 for 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 twill overshirt therefore has an environmental cost of 1334 impact points*.
By comparison, a garment of equivalent weight, made of 100% conventional cotton, manufactured in Bangladesh and sold by a fast fashion brand, has an environmental cost of 5524 points*.
Why the difference? Here are the main reasons:
- The countries of production: making clothes 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 manufacturing limits the impacts on climate change, ocean acidification and resource depletion.
- The material: organic cotton has a fairly low environmental impact compared with conventional cotton, mainly because it uses few pesticides (so low freshwater toxicity) and because it's biodegradable (so fewer issues with microfibres or end-of-life waste).
- Durability: fast fashion brands drive purchases in particular by refreshing their collections very quickly and offering a huge number of styles, and they discourage repairs by charging next-to-nothing prices. This increases the number of garments sold per person and reduces the number of times a garment is worn. At Loom, we've taken the opposite route: 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 performed by Loom on 31 August 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 is not always exactly the same on Ecobalyse (whose method evolves regularly) as on the official environmental labelling (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.