The most useful piece of care advice for natural fabrics isn’t printed on any label.
Wash them less.
Not because washing is inherently harmful, but because every wash adds friction to the fibres. Water, agitation, detergent, sometimes heat. Repeated often enough, even a well-made garment can gradually lose its texture, colour, and shape. Not dramatically. The way something slowly stops looking like itself.
Natural fibres often give you another option: air first, wash when needed.
Why natural fabrics may need less washing
Merino wool can stay fresh between wears thanks to its moisture management and resistance to odour. A merino piece worn for a day may only need to be aired overnight before it feels ready to wear again. How often depends on the weather, activity, and the garment itself.
Silk feels comfortable across temperatures and can be aired between wears when it hasn’t picked up marks or odour. It is delicate, though, so always follow the care label before washing or steaming it.
Organic cotton breathes and can often be refreshed by airing after a light wear. If it has absorbed sweat or picked up a stain, wash it rather than leaving the mark to set.
None of this means never washing. It means washing when the garment needs it, rather than automatically after every wear.
How to tell when a garment needs washing
A good rule: smell it first, look at it second, feel it third.
If there is a lingering odour, visible soil, or a change in how the fabric feels against your skin, it is time to wash. If it still feels fresh, airing it may be enough. Give the garment space on a hanger or lay it flat in a well-ventilated place, away from direct sun. Store it only once it is completely dry.
For merino, gentle airing can be especially useful between wears. For silk, check the care instructions before using steam: heat and moisture can affect some finishes.
There is no universal number of wears. A quiet day indoors and a humid afternoon ask different things of a garment. Trust what you notice, not a fixed schedule.
Why it matters for a garment’s life
Washing is part of good care. Overwashing is not. Each cycle exposes fibres to friction, and drying methods can add further stress. Washing only when needed can help preserve a garment’s shape, colour, and feel, while also using less water and energy over time.
At Athru, we make pieces designed to last years, not seasons. Part of that intention is caring for the fabric as thoughtfully as it was chosen. Washing less isn’t laziness. It is knowing when care means leaving something alone.