The twill overshirt
To be released in June 2025
We use organic cotton because so-called “conventional” cotton is a disaster for insects, birds, and farmers. Read more in this article.
Known as “sergé” in French, twill is a type of fabric recognized by its distinct diagonal pattern. Ours was manufactured by the Telatex factory in the Vosges.
This overshirt is made in Portugal at the Supercorte factory, with which we have been working since 2017.
Techniques That Ensure Quality
Thick fabric
Shirt fabrics rarely exceed 200 g/m². For this overshirt, we chose a thick, particularly durable twill (355 g/m²).
Thick fabric
Pre-wash
Pre-wash
This overshirt is stabilized and pre-washed at the factory to prevent it from shrinking at home (with cotton garments, most of the shrinkage occurs during the first wash).
Thick fabric
Pre-wash
Sturdy and laid-back
The key to a good overshirt is a sturdy fabric. That’s why we knocked on the door of Telatex, a factory in the Vosges region founded in 1840 that makes (among other things) beautiful workwear. With its dense twill, two large flap pockets, and slightly weathered colors, it’s impossible to look stuffy in this overshirt.
In detail
Twill weave
A fabric that can be recognized by its distinct diagonal lines (denim, for example, is twill)
Bartacks
The seams are reinforced in areas where the fabric is under tension.
Garment-dyed fabric
Dyed directly on the garment rather than on the roll of fabric, resulting in a slightly uneven color that will develop a patina with each wash.
2 outside pockets with flaps + 1 inside pocket
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
- Manufactured and dyed in Portugal
...manufacture in Portugal instead of France? Of course, producing in Portugal allows us to sell at lower prices. But it’s also easier to produce high-quality items there: in the 1980s, when France relocated its manufacturing industry, Portugal strengthened its own. Still, others besides us manage to make 100% “Made in France” overshirts, like Kidur.
How This Product Will Age
How do we know this? We ask our customers for their feedback on the product one year after purchase. And if the product is less than a year old, we provide our predictions based on some unsolicited feedback and our experience with similar products.
This overshirt will soften with each wash, becoming more and more comfortable. The color will develop a patina from the sun, the washing machine, and the passage of time—making your overshirt one-of-a-kind. The fabric’s texture will become more irregular and fluffy as a result of wear and machine washing.
Care Instructions
Before putting your overshirt in the washing machine, make sure to unbutton it completely, unfold the collar, and turn it inside out: this protects the fabric and the collar’s pleats from friction. Wash at 30° (use a gentle spin cycle to avoid creases that are hard to iron out), then hang it to dry on a hanger, making sure to adjust the collar properly. All that’s left is to slip it on and head to the docks, where the weight and boredom will weigh you down.
Environmental Cost
This environmental cost is calculated using the official methodology of the French environmental labeling system (to be rolled out starting October 1, 2025).

The label above shows the product’s environmental cost according to the official French environmental labeling methodology. This represents what its production “costs” nature when considering its impact on climate change, ocean acidification, its toxicity to freshwater, and so on. Currently in use in the textile sector, this label should soon appear on many everyday consumer products (food, cosmetics, furniture, etc.) to help you make more eco-friendly purchasing decisions.
The twill overshirt therefore has an environmental cost of 1,334 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 5,524 points*.
Why is there this difference? Here are the main reasons:
- Countries of origin: Manufacturing in Portugal or France requires less fossil fuel energy than in Bangladesh (one of the leading producers of low-cost clothing). As a result, this more local manufacturing reduces the impacts on climate change, ocean acidification, and resource depletion.
- The material: Organic cotton has a relatively low environmental impact compared to conventional cotton, particularly because it uses few pesticides (and thus poses a low risk of toxicity to freshwater) and is biodegradable (and thus causes fewer issues related to microfibers or end-of-life waste).
- Sustainability: Fast-fashion retailers encourage purchasing—in particular by rapidly refreshing their collections and offering a vast number of styles—and they discourage repairs by charging rock-bottom prices. This, in turn, increases the number of garments sold per person and reduces the number of times a garment is worn. In contrast, at Loom, we’ve chosen to adopt business practices that encourage our customers to keep their clothes for as long as possible.
Even though we've done everything we can to minimize it, this product's environmental impact is not insignificant. So before you buy, make sure to get the most use out of your clothes.
*Calculations performed by Loom on August 24, 2026. Click on 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 methodology changes regularly) as on the official environmental label (based on Ecobalyse version 7.0).
Reviews of this product
The standard practice is to send review request emails a few days after the purchase. We wait a month—the minimum amount of time needed to form an informed opinion.
Customer Review Policy
When do you ask customers for reviews?
We’ll send you a review request one month after we receive your order. We believe this is the minimum amount of time needed to have worn and washed an item several times and to form a truly informed opinion. After that, all your reviews are published within a week, whether they’re positive or negative.
Do you request reviews for 100% of the products ordered by customers?
We used to do that at first, but then we realized we were starting to send way too many emails to certain customers who shop with us regularly. In short, we were spamming them a bit. Plus, it was starting to take the team way too much time to respond to reviews—since we want to reply individually and privately to almost everyone 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 posted on the site for potential buyers to form an informed opinion about the product. 2/ We on the Loom team have read enough reviews to understand how to evolve the product into the next generation.
Just a quick thought: What proof is there that we aren't manipulating reviews by giving 5-star ratings to everything?
Honestly: nothing—we’re just giving you our word. Just like with everything else, actually: where we manufacture our products, where our wool comes from, our lab test results, and so on. The only times we might edit what you write is if your message contains spelling mistakes (and even then, quite a few slip past us) or if it’s racist, homophobic, etc. (but that’s never happened so far).
Asking for feedback after just one month isn't enough to know if the clothes are really durable, is it?
You're right—that's why we send you another email asking for a review one year after your purchase—we even ask for a photo to see how your garment has aged. We use the responses to improve our clothing and to provide information on “how this product will age” on our product pages. To avoid unnecessarily bothering our customers, we don’t ask for reviews on 100% of the products ordered: as soon as we have enough data to understand where we can improve, we stop asking for reviews after one year.