Main fabric: 96% cotton, 4% spandex
Waistband: 68% nylon, 19% polyester, 12% spandex

The panties will remain in very good condition, will stretch very little, and won't develop holes anytime soon (for the boxer shorts made from the same fabric, only a handful of customers have reported holes after several years of wear). However, like all cotton garments, they will lose some of their softness and luster with repeated washings.

It’s machine-washable at 40 degrees, but it’s better to wash it at 30: it’s just as effective, much more eco-friendly, and will extend its lifespan. And if possible, wash it inside out to better preserve the colors.

To ensure its longevity and protect the environment, it’s best to air-dry it on a clothesline. But sometimes you have no choice: if you must use a dryer, set it to a low temperature (i.e., on the delicate or synthetic cycle) to prevent the elastane in the waistband and fabric from losing its elasticity and to minimize damage to the fibers.

If the panties look a little shiny at first, that’s normal too: this slightly silky appearance is due to the fineness of the cotton fibers, which give the fabric its softness and durability. But don’t worry—this sheen tends to fade with each wash.

Finally, if the fabric pills slightly on your skin during the first few wears, that’s normal—it will disappear completely after a few washes.

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 panties therefore have an environmental cost of 95 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 321 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).