98% cotton, 2% spandex

These jeans should hold up very well: in particular, they’ll be very resistant to stretching. The fabric is also resistant to holes—but resistant doesn’t mean indestructible. So, a word of advice to cyclists, new parents, and anyone whose daily life puts their pants through a rough time: if you notice any signs of wear appearing in the crotch, on the knees, or on the buttocks, take them to a tailor right away—they’ll fix it for just a few euros.

To avoid discoloration on your jeans (such as mottling caused by friction along the creases in the washing machine), it’s important towash them inside out at 30°C and not to overload the machine. 
If you really want to put them in the dryer, choose the delicate or synthetic cycle to be on the safe side: your jeans contain a small amount of spandex, which could lose its elasticity at high temperatures.
Don’t iron them too hot: the spandex (again) could melt at too high a temperature. And to avoid leaving marks on the fabric, iron them inside out.
If, after repeated wear, you start to see signs of wear in the crotch or at the knees, take them to a tailor right away before a real hole appears and it’s too late.
Finally, don’t forget to remove any large bills from your pockets before putting them in the washing machine :)

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.

A pair of slim-fit jeans therefore has an environmental cost of 1,153 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 4,338 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).