53% virgin wool, 47% cotton

The beauty of wool is that it’s stretchy: this sweater will hardly lose its shape at all. If the sleeves stretch out a little, you can tighten them up by ironing them, as explained here. 

The great thing about cotton is that it’s durable, so there’s little risk of holes forming at the elbows (or at least not for a long time). If that ever happens, there’s always time to wear elbow pads.

It might develop a few pills in areas prone to friction, such as the sides... but nothing that a pill shaver can't handle (and the more pills you remove, the less likely they are to reappear).

The biggest risks with this wool sweater are
1—moths, if they take up residence in your closet! So here’s a short article to read to keep them from showing up at your place. And then, of course, snags and loose threads. Our advice: stay away from safety pins and Captain Hook. And if it’s too late, here’s a quick tutorial on how to mend your sweater.
2- Shrinkage: if you’re not careful when washing it, the wool can felt and your sweater will shrink. So be sure to follow our washing instructions.

WARNING: This sweater contains wool. If you wash it in the washing machine on the standard cycle, it will shrink significantly and become unwearable. So wash it by hand or in the washing machine on the wool cycle (and definitely not on the delicate cycle—it’s not the same thing), then lay it flat to dry to prevent it from losing its shape.

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 fine-knit sweater therefore has an environmental cost of 1,003 impact points*.

By comparison, a garment of equivalent weight, made of 100% acrylic, manufactured in Bangladesh, and sold by a fast-fashion brand, has an environmental cost of 1,734 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: Wool has a fairly significant environmental impact, particularly because sheep release methane—a powerful greenhouse gas—during digestion. For this reason, the difference between the environmental impact of our product and that of fast fashion is not very significant. However, unlike acrylic, wool has major advantages: it is warm (thanks to its insulating properties), retains its shape (the fiber is very elastic), breathable (it wicks away sweat), and odor-resistant (it prevents the growth of bacteria).
• 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).