100% cotton

The t-shirt will stay in very good condition, barely lose its shape and won't pill at all. As with all cotton garments, dark colours will fade slightly with washing and white can yellow due to sweat or deodorant (but our customers have managed to fix it every time thanks to sodium percarbonate, tutorial here).

It can go in the machine at 40 degrees, but it's better to wash it at 30: it's just as effective, greener, and the colours will fade more slowly.

For its longevity and for the sake of the environment, the ideal is to dry it on a hanger in the open air. But sometimes you don't have a choice: if you do need to use a tumble dryer, do it at a low temperature (i.e. on a delicate or synthetic setting) to keep the elastane in the collar from losing its stretch and to avoid damaging the fibres too much.

Of course, this t-shirt is made of cotton, not kevlar: despite all our efforts, there may be some very slight shrinkage after the first wash. Don't worry, that's normal and it will settle down afterwards. 

Oh, and if you've received a white t-shirt, you might notice a few faint black marks: these aren't stains, but small irregularities that come from the fact that our cotton is organically grown. Speaking of the white t-shirt, to keep it from turning grey or yellow over time, make sure to wash it separately from your other clothes. And if you want to revive the white now and then, just follow this recipe (very simple, we promise).

The label above shows the product's environmental cost according to the official methodology of France's 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 organic cotton t-shirt therefore has an environmental cost of 369 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 1440 points*.

Why this difference? Here are the main reasons:

• The production countries: making a garment 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 drive purchases in particular by refreshing 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 clothes sold per person and reduces the number of times a garment is worn. At Loom, we've taken the opposite path: 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 make it as low as possible, this product's environmental impact isn't negligible. So before buying, make your clothes last as long as possible.

*Calculations performed 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. 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)